diff --git a/packages/nodes-base/nodes/Microsoft/Excel/test/v2/methods/loadOptions.test.ts b/packages/nodes-base/nodes/Microsoft/Excel/test/v2/methods/loadOptions.test.ts
index 101dedd84d7..d99f90832b4 100644
--- a/packages/nodes-base/nodes/Microsoft/Excel/test/v2/methods/loadOptions.test.ts
+++ b/packages/nodes-base/nodes/Microsoft/Excel/test/v2/methods/loadOptions.test.ts
@@ -48,6 +48,9 @@ describe('Microsoft Excel V2 - loadOptions', () => {
 				`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/usedRange`,
 				undefined,
 				{ select: 'values' },
+				undefined,
+				undefined,
+				0,
 			);
 
 			expect(result).toEqual([
@@ -79,6 +82,10 @@ describe('Microsoft Excel V2 - loadOptions', () => {
 				'PATCH',
 				`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/range(address='${range}')`,
 				{ select: 'values' },
+				undefined,
+				undefined,
+				undefined,
+				0,
 			);
 
 			expect(result).toEqual([
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/table/append.sp.batch.test.ts b/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/table/append.sp.batch.test.ts
new file mode 100644
index 00000000000..f740f91fdb3
--- /dev/null
+++ b/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/table/append.sp.batch.test.ts
@@ -0,0 +1,52 @@
+import { NodeTestHarness } from '@nodes-testing/node-test-harness';
+import nock from 'nock';
+
+import { credentials } from '../../../credentials';
+
+// Pins the whole-batch rule: table:append sends ONE request-set for all input items and
+// reads every param at item 0 — so even with per-item target expressions that differ,
+// all four session requests go to item 0's (alice's) root. Bob's root is never mocked,
+// so any request there fails (disableNetConnect); empty pendingMocks pins the exact set.
+describe('Test MicrosoftExcelV2, Service Principal table => append uses item 0 target for the whole batch', () => {
+	nock('https://graph.microsoft.com/v1.0')
+		.matchHeader('Authorization', 'Bearer test-access-token')
+		.get(
+			'/users/alice%40contoso.com/drive/items/01FUWX3BQ4ATCOZNR265GLA6IJEZDQUE4I/workbook/worksheets/%7BA0883CFE-D27E-4ECC-B94B-981830AAD55B%7D/tables/%7B317CA469-7D1C-4A5D-9B0B-424444BF0336%7D/columns',
+		)
+		.reply(200, { value: [{ name: 'row' }] });
+
+	nock('https://graph.microsoft.com/v1.0')
+		.matchHeader('Authorization', 'Bearer test-access-token')
+		.post(
+			'/users/alice%40contoso.com/drive/items/01FUWX3BQ4ATCOZNR265GLA6IJEZDQUE4I/workbook/createSession',
+			{
+				persistChanges: true,
+			},
+		)
+		.reply(200, { id: 'session-1' });
+
+	// Both items' rows land in ONE add call under alice's root.
+	nock('https://graph.microsoft.com/v1.0')
+		.matchHeader('Authorization', 'Bearer test-access-token')
+		.matchHeader('workbook-session-id', 'session-1')
+		.post(
+			'/users/alice%40contoso.com/drive/items/01FUWX3BQ4ATCOZNR265GLA6IJEZDQUE4I/workbook/worksheets/%7BA0883CFE-D27E-4ECC-B94B-981830AAD55B%7D/tables/%7B317CA469-7D1C-4A5D-9B0B-424444BF0336%7D/rows/add',
+			{ values: [['r1'], ['r2']] },
+		)
+		.reply(200, { index: 0, values: [['r1'], ['r2']] });
+
+	nock('https://graph.microsoft.com/v1.0')
+		.matchHeader('Authorization', 'Bearer test-access-token')
+		.matchHeader('workbook-session-id', 'session-1')
+		.post(
+			'/users/alice%40contoso.com/drive/items/01FUWX3BQ4ATCOZNR265GLA6IJEZDQUE4I/workbook/closeSession',
+			{},
+		)
+		.reply(200);
+
+	new NodeTestHarness().setupTests({
+		credentials,
+		workflowFiles: ['append.sp.batch.workflow.json'],
+		customAssertions: () => expect(nock.pendingMocks()).toEqual([]),
+	});
+});
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/table/append.sp.batch.workflow.json b/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/table/append.sp.batch.workflow.json
new file mode 100644
index 00000000000..dbfd68da79c
--- /dev/null
+++ b/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/table/append.sp.batch.workflow.json
@@ -0,0 +1,91 @@
+{
+	"name": "microsoft excel 365 - table append (service principal, whole-batch item-0 target)",
+	"nodes": [
+		{
+			"parameters": {},
+			"id": "9a000000-0000-4000-8000-000000000001",
+			"name": "When clicking \"Execute Workflow\"",
+			"type": "n8n-nodes-base.manualTrigger",
+			"typeVersion": 1,
+			"position": [0, 0]
+		},
+		{
+			"parameters": {
+				"data": [
+					{ "user": "alice@contoso.com", "row": "r1" },
+					{ "user": "bob@contoso.com", "row": "r2" }
+				]
+			},
+			"id": "9a000000-0000-4000-8000-000000000002",
+			"name": "Test Data",
+			"type": "n8n-nodes-testing.testData",
+			"typeVersion": 1,
+			"position": [200, 0]
+		},
+		{
+			"parameters": {
+				"authentication": "microsoftEntraServicePrincipalApi",
+				"userTarget": {
+					"__rl": true,
+					"value": "={{ $json.user }}",
+					"mode": "id"
+				},
+				"resource": "table",
+				"operation": "append",
+				"workbook": {
+					"__rl": true,
+					"value": "01FUWX3BQ4ATCOZNR265GLA6IJEZDQUE4I",
+					"mode": "id"
+				},
+				"worksheet": {
+					"__rl": true,
+					"value": "{A0883CFE-D27E-4ECC-B94B-981830AAD55B}",
+					"mode": "id"
+				},
+				"table": {
+					"__rl": true,
+					"value": "{317CA469-7D1C-4A5D-9B0B-424444BF0336}",
+					"mode": "id"
+				},
+				"dataMode": "autoMap",
+				"options": {}
+			},
+			"id": "9a000000-0000-4000-8000-000000000003",
+			"name": "Microsoft Excel 365",
+			"type": "n8n-nodes-base.microsoftExcel",
+			"typeVersion": 2,
+			"position": [400, 0],
+			"credentials": {
+				"microsoftEntraServicePrincipalApi": {
+					"id": "1",
+					"name": "Microsoft Entra Service Principal account"
+				}
+			}
+		}
+	],
+	"pinData": {
+		"Microsoft Excel 365": [
+			{
+				"json": {
+					"row": "r1"
+				}
+			},
+			{
+				"json": {
+					"row": "r2"
+				}
+			}
+		]
+	},
+	"connections": {
+		"When clicking \"Execute Workflow\"": {
+			"main": [[{ "node": "Test Data", "type": "main", "index": 0 }]]
+		},
+		"Test Data": {
+			"main": [[{ "node": "Microsoft Excel 365", "type": "main", "index": 0 }]]
+		}
+	},
+	"active": false,
+	"settings": {},
+	"tags": []
+}
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/worksheet/readRows.sp.drive.perItem.test.ts b/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/worksheet/readRows.sp.drive.perItem.test.ts
new file mode 100644
index 00000000000..be69091e3ba
--- /dev/null
+++ b/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/worksheet/readRows.sp.drive.perItem.test.ts
@@ -0,0 +1,30 @@
+import { NodeTestHarness } from '@nodes-testing/node-test-harness';
+import nock from 'nock';
+
+import { credentials } from '../../../credentials';
+
+// Drive-mode per-item resolution: with `Access As: Drive` the target id IS the drive,
+// addressed as `/drives/{id}` (no `/drive` suffix). Two items with distinct drive-id
+// expressions must each read from their own drive root. Consume-once + empty
+// pendingMocks pin the exact request set.
+describe('Test MicrosoftExcelV2, Service Principal worksheet => readRows per-item drive target', () => {
+	nock('https://graph.microsoft.com/v1.0')
+		.matchHeader('Authorization', 'Bearer test-access-token')
+		.get(
+			'/drives/b!driveA/items/01FUWX3BQ4ATCOZNR265GLA6IJEZDQUE4I/workbook/worksheets/%7BA0883CFE-D27E-4ECC-B94B-981830AAD55B%7D/usedRange',
+		)
+		.reply(200, { values: [['row'], ['drive-a-row']] });
+
+	nock('https://graph.microsoft.com/v1.0')
+		.matchHeader('Authorization', 'Bearer test-access-token')
+		.get(
+			'/drives/b!driveB/items/01FUWX3BQ4ATCOZNR265GLA6IJEZDQUE4I/workbook/worksheets/%7BA0883CFE-D27E-4ECC-B94B-981830AAD55B%7D/usedRange',
+		)
+		.reply(200, { values: [['row'], ['drive-b-row']] });
+
+	new NodeTestHarness().setupTests({
+		credentials,
+		workflowFiles: ['readRows.sp.drive.perItem.workflow.json'],
+		customAssertions: () => expect(nock.pendingMocks()).toEqual([]),
+	});
+});
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/worksheet/readRows.sp.drive.perItem.workflow.json b/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/worksheet/readRows.sp.drive.perItem.workflow.json
new file mode 100644
index 00000000000..fd8f4fecf5c
--- /dev/null
+++ b/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/worksheet/readRows.sp.drive.perItem.workflow.json
@@ -0,0 +1,83 @@
+{
+	"name": "microsoft excel 365 - read rows (service principal, per-item drive target)",
+	"nodes": [
+		{
+			"parameters": {},
+			"id": "8a000000-0000-4000-8000-000000000001",
+			"name": "When clicking \"Execute Workflow\"",
+			"type": "n8n-nodes-base.manualTrigger",
+			"typeVersion": 1,
+			"position": [0, 0]
+		},
+		{
+			"parameters": {
+				"data": [{ "drive": "b!driveA" }, { "drive": "b!driveB" }]
+			},
+			"id": "8a000000-0000-4000-8000-000000000002",
+			"name": "Test Data",
+			"type": "n8n-nodes-testing.testData",
+			"typeVersion": 1,
+			"position": [200, 0]
+		},
+		{
+			"parameters": {
+				"authentication": "microsoftEntraServicePrincipalApi",
+				"resourceTarget": "drive",
+				"driveTarget": {
+					"__rl": true,
+					"value": "={{ $json.drive }}",
+					"mode": "id"
+				},
+				"resource": "worksheet",
+				"operation": "readRows",
+				"workbook": {
+					"__rl": true,
+					"value": "01FUWX3BQ4ATCOZNR265GLA6IJEZDQUE4I",
+					"mode": "id"
+				},
+				"worksheet": {
+					"__rl": true,
+					"value": "{A0883CFE-D27E-4ECC-B94B-981830AAD55B}",
+					"mode": "id"
+				},
+				"options": {}
+			},
+			"id": "8a000000-0000-4000-8000-000000000003",
+			"name": "Microsoft Excel 365",
+			"type": "n8n-nodes-base.microsoftExcel",
+			"typeVersion": 2,
+			"position": [400, 0],
+			"credentials": {
+				"microsoftEntraServicePrincipalApi": {
+					"id": "1",
+					"name": "Microsoft Entra Service Principal account"
+				}
+			}
+		}
+	],
+	"pinData": {
+		"Microsoft Excel 365": [
+			{
+				"json": {
+					"row": "drive-a-row"
+				}
+			},
+			{
+				"json": {
+					"row": "drive-b-row"
+				}
+			}
+		]
+	},
+	"connections": {
+		"When clicking \"Execute Workflow\"": {
+			"main": [[{ "node": "Test Data", "type": "main", "index": 0 }]]
+		},
+		"Test Data": {
+			"main": [[{ "node": "Microsoft Excel 365", "type": "main", "index": 0 }]]
+		}
+	},
+	"active": false,
+	"settings": {},
+	"tags": []
+}
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/worksheet/readRows.sp.perItem.test.ts b/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/worksheet/readRows.sp.perItem.test.ts
new file mode 100644
index 00000000000..a91d4651734
--- /dev/null
+++ b/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/worksheet/readRows.sp.perItem.test.ts
@@ -0,0 +1,30 @@
+import { NodeTestHarness } from '@nodes-testing/node-test-harness';
+import nock from 'nock';
+
+import { credentials } from '../../../credentials';
+
+// The target RLC accepts expressions, so it must be resolved per input item: the Test
+// Data node fans out to two users and each item's read must be rebased onto that item's
+// `/users/{id}/drive` root (encoding pin preserved). Consume-once interceptors + empty
+// pendingMocks pin the exact request set in both directions.
+describe('Test MicrosoftExcelV2, Service Principal worksheet => readRows per-item target', () => {
+	nock('https://graph.microsoft.com/v1.0')
+		.matchHeader('Authorization', 'Bearer test-access-token')
+		.get(
+			'/users/jane%40contoso.com/drive/items/01FUWX3BQ4ATCOZNR265GLA6IJEZDQUE4I/workbook/worksheets/%7BA0883CFE-D27E-4ECC-B94B-981830AAD55B%7D/usedRange',
+		)
+		.reply(200, { values: [['row'], ['jane-row']] });
+
+	nock('https://graph.microsoft.com/v1.0')
+		.matchHeader('Authorization', 'Bearer test-access-token')
+		.get(
+			'/users/john%40contoso.com/drive/items/01FUWX3BQ4ATCOZNR265GLA6IJEZDQUE4I/workbook/worksheets/%7BA0883CFE-D27E-4ECC-B94B-981830AAD55B%7D/usedRange',
+		)
+		.reply(200, { values: [['row'], ['john-row']] });
+
+	new NodeTestHarness().setupTests({
+		credentials,
+		workflowFiles: ['readRows.sp.perItem.workflow.json'],
+		customAssertions: () => expect(nock.pendingMocks()).toEqual([]),
+	});
+});
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/worksheet/readRows.sp.perItem.workflow.json b/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/worksheet/readRows.sp.perItem.workflow.json
new file mode 100644
index 00000000000..774eccbfc19
--- /dev/null
+++ b/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/worksheet/readRows.sp.perItem.workflow.json
@@ -0,0 +1,82 @@
+{
+	"name": "microsoft excel 365 - read rows (service principal, per-item target)",
+	"nodes": [
+		{
+			"parameters": {},
+			"id": "6a000000-0000-4000-8000-000000000001",
+			"name": "When clicking \"Execute Workflow\"",
+			"type": "n8n-nodes-base.manualTrigger",
+			"typeVersion": 1,
+			"position": [0, 0]
+		},
+		{
+			"parameters": {
+				"data": [{ "user": "jane@contoso.com" }, { "user": "john@contoso.com" }]
+			},
+			"id": "6a000000-0000-4000-8000-000000000002",
+			"name": "Test Data",
+			"type": "n8n-nodes-testing.testData",
+			"typeVersion": 1,
+			"position": [200, 0]
+		},
+		{
+			"parameters": {
+				"authentication": "microsoftEntraServicePrincipalApi",
+				"userTarget": {
+					"__rl": true,
+					"value": "={{ $json.user }}",
+					"mode": "id"
+				},
+				"resource": "worksheet",
+				"operation": "readRows",
+				"workbook": {
+					"__rl": true,
+					"value": "01FUWX3BQ4ATCOZNR265GLA6IJEZDQUE4I",
+					"mode": "id"
+				},
+				"worksheet": {
+					"__rl": true,
+					"value": "{A0883CFE-D27E-4ECC-B94B-981830AAD55B}",
+					"mode": "id"
+				},
+				"options": {}
+			},
+			"id": "6a000000-0000-4000-8000-000000000003",
+			"name": "Microsoft Excel 365",
+			"type": "n8n-nodes-base.microsoftExcel",
+			"typeVersion": 2,
+			"position": [400, 0],
+			"credentials": {
+				"microsoftEntraServicePrincipalApi": {
+					"id": "1",
+					"name": "Microsoft Entra Service Principal account"
+				}
+			}
+		}
+	],
+	"pinData": {
+		"Microsoft Excel 365": [
+			{
+				"json": {
+					"row": "jane-row"
+				}
+			},
+			{
+				"json": {
+					"row": "john-row"
+				}
+			}
+		]
+	},
+	"connections": {
+		"When clicking \"Execute Workflow\"": {
+			"main": [[{ "node": "Test Data", "type": "main", "index": 0 }]]
+		},
+		"Test Data": {
+			"main": [[{ "node": "Microsoft Excel 365", "type": "main", "index": 0 }]]
+		}
+	},
+	"active": false,
+	"settings": {},
+	"tags": []
+}
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/worksheet/readRows.sp.perItemContinueOnFail.test.ts b/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/worksheet/readRows.sp.perItemContinueOnFail.test.ts
new file mode 100644
index 00000000000..413346315ca
--- /dev/null
+++ b/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/worksheet/readRows.sp.perItemContinueOnFail.test.ts
@@ -0,0 +1,23 @@
+import { NodeTestHarness } from '@nodes-testing/node-test-harness';
+import nock from 'nock';
+
+import { credentials } from '../../../credentials';
+
+// Per-item error isolation under continueOnFail: item 0's bogus target ("not a user"
+// fails the shape validators) must produce an error item for item 0 only, while item 1
+// still reads from its own user's drive. Only jane is mocked; consume-once + empty
+// pendingMocks pin the exact request set.
+describe('Test MicrosoftExcelV2, Service Principal worksheet => readRows fails only the bad item under continueOnFail', () => {
+	nock('https://graph.microsoft.com/v1.0')
+		.matchHeader('Authorization', 'Bearer test-access-token')
+		.get(
+			'/users/jane%40contoso.com/drive/items/01FUWX3BQ4ATCOZNR265GLA6IJEZDQUE4I/workbook/worksheets/%7BA0883CFE-D27E-4ECC-B94B-981830AAD55B%7D/usedRange',
+		)
+		.reply(200, { values: [['row'], ['jane-row']] });
+
+	new NodeTestHarness().setupTests({
+		credentials,
+		workflowFiles: ['readRows.sp.perItemContinueOnFail.workflow.json'],
+		customAssertions: () => expect(nock.pendingMocks()).toEqual([]),
+	});
+});
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/worksheet/readRows.sp.perItemContinueOnFail.workflow.json b/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/worksheet/readRows.sp.perItemContinueOnFail.workflow.json
new file mode 100644
index 00000000000..9e5976117eb
--- /dev/null
+++ b/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/worksheet/readRows.sp.perItemContinueOnFail.workflow.json
@@ -0,0 +1,83 @@
+{
+	"name": "microsoft excel 365 - read rows (service principal, per-item target, continueOnFail)",
+	"nodes": [
+		{
+			"parameters": {},
+			"id": "7a000000-0000-4000-8000-000000000001",
+			"name": "When clicking \"Execute Workflow\"",
+			"type": "n8n-nodes-base.manualTrigger",
+			"typeVersion": 1,
+			"position": [0, 0]
+		},
+		{
+			"parameters": {
+				"data": [{ "user": "not a user" }, { "user": "jane@contoso.com" }]
+			},
+			"id": "7a000000-0000-4000-8000-000000000002",
+			"name": "Test Data",
+			"type": "n8n-nodes-testing.testData",
+			"typeVersion": 1,
+			"position": [200, 0]
+		},
+		{
+			"parameters": {
+				"authentication": "microsoftEntraServicePrincipalApi",
+				"userTarget": {
+					"__rl": true,
+					"value": "={{ $json.user }}",
+					"mode": "id"
+				},
+				"resource": "worksheet",
+				"operation": "readRows",
+				"workbook": {
+					"__rl": true,
+					"value": "01FUWX3BQ4ATCOZNR265GLA6IJEZDQUE4I",
+					"mode": "id"
+				},
+				"worksheet": {
+					"__rl": true,
+					"value": "{A0883CFE-D27E-4ECC-B94B-981830AAD55B}",
+					"mode": "id"
+				},
+				"options": {}
+			},
+			"id": "7a000000-0000-4000-8000-000000000003",
+			"name": "Microsoft Excel 365",
+			"type": "n8n-nodes-base.microsoftExcel",
+			"typeVersion": 2,
+			"position": [400, 0],
+			"onError": "continueRegularOutput",
+			"credentials": {
+				"microsoftEntraServicePrincipalApi": {
+					"id": "1",
+					"name": "Microsoft Entra Service Principal account"
+				}
+			}
+		}
+	],
+	"pinData": {
+		"Microsoft Excel 365": [
+			{
+				"json": {
+					"error": "The target ID is not valid"
+				}
+			},
+			{
+				"json": {
+					"row": "jane-row"
+				}
+			}
+		]
+	},
+	"connections": {
+		"When clicking \"Execute Workflow\"": {
+			"main": [[{ "node": "Test Data", "type": "main", "index": 0 }]]
+		},
+		"Test Data": {
+			"main": [[{ "node": "Microsoft Excel 365", "type": "main", "index": 0 }]]
+		}
+	},
+	"active": false,
+	"settings": {},
+	"tags": []
+}
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/worksheet/upsert.sp.batch.test.ts b/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/worksheet/upsert.sp.batch.test.ts
new file mode 100644
index 00000000000..a39ce12fb75
--- /dev/null
+++ b/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/worksheet/upsert.sp.batch.test.ts
@@ -0,0 +1,63 @@
+import { NodeTestHarness } from '@nodes-testing/node-test-harness';
+import nock from 'nock';
+
+import { credentials } from '../../../credentials';
+
+// Pins the whole-batch rule for worksheet:upsert: one request set for all input items and
+// every request-level parameter (including the SP target) is read at item 0 — so even with
+// per-item target expressions that differ, all three requests (usedRange read, append-range
+// probe, final write) go to item 0's (alice's) root. Bob's root is never mocked, so any
+// request there fails (disableNetConnect); empty pendingMocks pins the exact set.
+describe('Test MicrosoftExcelV2, Service Principal worksheet => upsert uses item 0 target for the whole batch', () => {
+	nock('https://graph.microsoft.com/v1.0')
+		.matchHeader('Authorization', 'Bearer test-access-token')
+		.get(
+			'/users/alice%40contoso.com/drive/items/01FUWX3BQ4ATCOZNR265GLA6IJEZDQUE4I/workbook/worksheets/%7BA0883CFE-D27E-4ECC-B94B-981830AAD55B%7D/usedRange',
+		)
+		.reply(200, {
+			address: 'Sheet1!A1:B3',
+			values: [
+				['id', 'data'],
+				['1', 'old1'],
+				['2', 'old2'],
+			],
+		});
+
+	// Item 1 appends, so the node re-reads the used range (address only) — still under alice.
+	nock('https://graph.microsoft.com/v1.0')
+		.matchHeader('Authorization', 'Bearer test-access-token')
+		.get(
+			'/users/alice%40contoso.com/drive/items/01FUWX3BQ4ATCOZNR265GLA6IJEZDQUE4I/workbook/worksheets/%7BA0883CFE-D27E-4ECC-B94B-981830AAD55B%7D/usedRange',
+		)
+		.query({ select: 'address' })
+		.reply(200, { address: 'Sheet1!A1:B3' });
+
+	// Both items' rows (item 0's update + item 1's append) land in ONE write under alice's root.
+	nock('https://graph.microsoft.com/v1.0')
+		.matchHeader('Authorization', 'Bearer test-access-token')
+		.patch(
+			"/users/alice%40contoso.com/drive/items/01FUWX3BQ4ATCOZNR265GLA6IJEZDQUE4I/workbook/worksheets/%7BA0883CFE-D27E-4ECC-B94B-981830AAD55B%7D/range(address='A1:B4')",
+			{
+				values: [
+					['id', 'data'],
+					['1', 'new1'],
+					['2', 'old2'],
+					['3', 'new3'],
+				],
+			},
+		)
+		.reply(200, {
+			values: [
+				['id', 'data'],
+				['1', 'new1'],
+				['2', 'old2'],
+				['3', 'new3'],
+			],
+		});
+
+	new NodeTestHarness().setupTests({
+		credentials,
+		workflowFiles: ['upsert.sp.batch.workflow.json'],
+		customAssertions: () => expect(nock.pendingMocks()).toEqual([]),
+	});
+});
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/worksheet/upsert.sp.batch.workflow.json b/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/worksheet/upsert.sp.batch.workflow.json
new file mode 100644
index 00000000000..ab654b41f1f
--- /dev/null
+++ b/packages/nodes-base/nodes/Microsoft/Excel/test/v2/node/worksheet/upsert.sp.batch.workflow.json
@@ -0,0 +1,89 @@
+{
+	"name": "microsoft excel 365 - worksheet upsert (service principal, whole-batch item-0 target)",
+	"nodes": [
+		{
+			"parameters": {},
+			"id": "5a000000-0000-4000-8000-000000000001",
+			"name": "When clicking \"Execute Workflow\"",
+			"type": "n8n-nodes-base.manualTrigger",
+			"typeVersion": 1,
+			"position": [0, 0]
+		},
+		{
+			"parameters": {
+				"data": [
+					{ "user": "alice@contoso.com", "id": "1", "data": "new1" },
+					{ "user": "bob@contoso.com", "id": "3", "data": "new3" }
+				]
+			},
+			"id": "5a000000-0000-4000-8000-000000000002",
+			"name": "Test Data",
+			"type": "n8n-nodes-testing.testData",
+			"typeVersion": 1,
+			"position": [200, 0]
+		},
+		{
+			"parameters": {
+				"authentication": "microsoftEntraServicePrincipalApi",
+				"userTarget": {
+					"__rl": true,
+					"value": "={{ $json.user }}",
+					"mode": "id"
+				},
+				"resource": "worksheet",
+				"operation": "upsert",
+				"workbook": {
+					"__rl": true,
+					"value": "01FUWX3BQ4ATCOZNR265GLA6IJEZDQUE4I",
+					"mode": "id"
+				},
+				"worksheet": {
+					"__rl": true,
+					"value": "{A0883CFE-D27E-4ECC-B94B-981830AAD55B}",
+					"mode": "id"
+				},
+				"dataMode": "autoMap",
+				"columnToMatchOn": "id",
+				"options": {}
+			},
+			"id": "5a000000-0000-4000-8000-000000000003",
+			"name": "Microsoft Excel 365",
+			"type": "n8n-nodes-base.microsoftExcel",
+			"typeVersion": 2.1,
+			"position": [400, 0],
+			"credentials": {
+				"microsoftEntraServicePrincipalApi": {
+					"id": "1",
+					"name": "Microsoft Entra Service Principal account"
+				}
+			}
+		}
+	],
+	"pinData": {
+		"Microsoft Excel 365": [
+			{
+				"json": {
+					"id": "1",
+					"data": "new1"
+				}
+			},
+			{
+				"json": {
+					"id": "3",
+					"data": "new3"
+				}
+			}
+		]
+	},
+	"connections": {
+		"When clicking \"Execute Workflow\"": {
+			"main": [[{ "node": "Test Data", "type": "main", "index": 0 }]]
+		},
+		"Test Data": {
+			"main": [[{ "node": "Microsoft Excel 365", "type": "main", "index": 0 }]]
+		}
+	},
+	"active": false,
+	"settings": {},
+	"tags": []
+}
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/addTable.operation.ts b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/addTable.operation.ts
index 80db436622e..5bbb519c3e9 100644
--- a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/addTable.operation.ts
+++ b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/addTable.operation.ts
@@ -7,6 +7,7 @@ import type {
 
 import { updateDisplayOptions } from '@utils/utilities';
 
+import { stampItemIndexOnError } from '../../../../GenericFunctions';
 import { microsoftApiRequest } from '../../transport';
 import { workbookRLC, worksheetRLC } from '../common.descriptions';
 
@@ -94,6 +95,9 @@ export async function execute(
 					{
 						select: 'address',
 					},
+					undefined,
+					undefined,
+					i,
 				);
 				range = address.split('!')[1];
 			} else {
@@ -108,6 +112,10 @@ export async function execute(
 					address: range,
 					hasHeaders,
 				},
+				undefined,
+				undefined,
+				undefined,
+				i,
 			);
 
 			const executionData = this.helpers.constructExecutionMetaData(
@@ -125,7 +133,8 @@ export async function execute(
 				returnData.push(...executionErrorData);
 				continue;
 			}
-			throw error;
+			// A NodeError from the transport may be missing the itemIndex, add it
+			throw stampItemIndexOnError(error, i);
 		}
 	}
 
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/append.operation.ts b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/append.operation.ts
index 11e345c28b0..e8898c8313a 100644
--- a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/append.operation.ts
+++ b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/append.operation.ts
@@ -159,6 +159,7 @@ export async function execute(
 	try {
 		// TODO: At some point it should be possible to use item dependent parameters.
 		//       Is however important to then not make one separate request each.
+		// Whole-batch operation: one request set for all items; request-level params (including the SP target) are read at item 0.
 		const workbookId = this.getNodeParameter('workbook', 0, undefined, {
 			extractValue: true,
 		}) as string;
@@ -179,6 +180,10 @@ export async function execute(
 			'GET',
 			`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/tables/${tableId}/columns`,
 			{},
+			undefined,
+			undefined,
+			undefined,
+			0,
 		);
 		const columnsRow = columnsData.value.map((column: IDataObject) => column.name);
 
@@ -242,6 +247,10 @@ export async function execute(
 			'POST',
 			`/drive/items/${workbookId}/workbook/createSession`,
 			{ persistChanges: true },
+			undefined,
+			undefined,
+			undefined,
+			0,
 		);
 		const responseData = await microsoftApiRequest.call(
 			this,
@@ -251,6 +260,7 @@ export async function execute(
 			{},
 			'',
 			{ 'workbook-session-id': id },
+			0,
 		);
 		await microsoftApiRequest.call(
 			this,
@@ -260,6 +270,7 @@ export async function execute(
 			{},
 			'',
 			{ 'workbook-session-id': id },
+			0,
 		);
 
 		const rawData = options.rawData as boolean;
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/convertToRange.operation.ts b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/convertToRange.operation.ts
index a09cb8b36a2..708b787b26b 100644
--- a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/convertToRange.operation.ts
+++ b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/convertToRange.operation.ts
@@ -7,6 +7,7 @@ import type {
 
 import { updateDisplayOptions } from '@utils/utilities';
 
+import { stampItemIndexOnError } from '../../../../GenericFunctions';
 import { microsoftApiRequest } from '../../transport';
 import { tableRLC, workbookRLC, worksheetRLC } from '../common.descriptions';
 
@@ -45,6 +46,11 @@ export async function execute(
 				this,
 				'POST',
 				`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/tables/${tableId}/convertToRange`,
+				undefined,
+				undefined,
+				undefined,
+				undefined,
+				i,
 			);
 
 			const executionData = this.helpers.constructExecutionMetaData(
@@ -62,7 +68,8 @@ export async function execute(
 				returnData.push(...executionErrorData);
 				continue;
 			}
-			throw error;
+			// A NodeError from the transport may be missing the itemIndex, add it
+			throw stampItemIndexOnError(error, i);
 		}
 	}
 
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/deleteTable.operation.ts b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/deleteTable.operation.ts
index fb1673ea21e..24b2775fb2e 100644
--- a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/deleteTable.operation.ts
+++ b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/deleteTable.operation.ts
@@ -2,6 +2,7 @@ import type { IExecuteFunctions, INodeExecutionData, INodeProperties } from 'n8n
 
 import { updateDisplayOptions } from '@utils/utilities';
 
+import { stampItemIndexOnError } from '../../../../GenericFunctions';
 import { microsoftApiRequest } from '../../transport';
 import { tableRLC, workbookRLC, worksheetRLC } from '../common.descriptions';
 
@@ -40,6 +41,11 @@ export async function execute(
 				this,
 				'DELETE',
 				`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/tables/${tableId}`,
+				undefined,
+				undefined,
+				undefined,
+				undefined,
+				i,
 			);
 
 			const executionData = this.helpers.constructExecutionMetaData(
@@ -57,7 +63,8 @@ export async function execute(
 				returnData.push(...executionErrorData);
 				continue;
 			}
-			throw error;
+			// A NodeError from the transport may be missing the itemIndex, add it
+			throw stampItemIndexOnError(error, i);
 		}
 	}
 
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/getColumns.operation.ts b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/getColumns.operation.ts
index 17aa9da13b4..f68955ea37b 100644
--- a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/getColumns.operation.ts
+++ b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/getColumns.operation.ts
@@ -7,6 +7,7 @@ import type {
 
 import { updateDisplayOptions } from '@utils/utilities';
 
+import { stampItemIndexOnError } from '../../../../GenericFunctions';
 import { microsoftApiRequest, microsoftApiRequestAllItemsSkip } from '../../transport';
 import { tableRLC, workbookRLC, worksheetRLC } from '../common.descriptions';
 
@@ -129,6 +130,7 @@ export async function execute(
 					`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/tables/${tableId}/columns`,
 					{},
 					qs,
+					i,
 				);
 			} else {
 				qs.$top = this.getNodeParameter('limit', i);
@@ -138,6 +140,9 @@ export async function execute(
 					`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/tables/${tableId}/columns`,
 					{},
 					qs,
+					undefined,
+					undefined,
+					i,
 				);
 				responseData = responseData.value;
 			}
@@ -163,7 +168,8 @@ export async function execute(
 				returnData.push(...executionErrorData);
 				continue;
 			}
-			throw error;
+			// A NodeError from the transport may be missing the itemIndex, add it
+			throw stampItemIndexOnError(error, i);
 		}
 	}
 
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/getRows.operation.ts b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/getRows.operation.ts
index 90ae8d69038..97337477175 100644
--- a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/getRows.operation.ts
+++ b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/getRows.operation.ts
@@ -7,6 +7,7 @@ import type {
 
 import { updateDisplayOptions } from '@utils/utilities';
 
+import { stampItemIndexOnError } from '../../../../GenericFunctions';
 import { microsoftApiRequest, microsoftApiRequestAllItemsSkip } from '../../transport';
 import { tableRLC, workbookRLC, worksheetRLC } from '../common.descriptions';
 
@@ -147,6 +148,7 @@ export async function execute(
 					`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/tables/${tableId}/rows`,
 					{},
 					qs,
+					i,
 				);
 			} else {
 				const rowsQs = { ...qs };
@@ -157,6 +159,9 @@ export async function execute(
 					`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/tables/${tableId}/rows`,
 					{},
 					rowsQs,
+					undefined,
+					undefined,
+					i,
 				);
 				responseData = responseData.value;
 			}
@@ -171,6 +176,7 @@ export async function execute(
 					`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/tables/${tableId}/columns`,
 					{},
 					columnsQs,
+					i,
 				);
 
 				columns = (columns as IDataObject[]).map((column) => column.name);
@@ -220,7 +226,8 @@ export async function execute(
 				returnData.push(...executionErrorData);
 				continue;
 			}
-			throw error;
+			// A NodeError from the transport may be missing the itemIndex, add it
+			throw stampItemIndexOnError(error, i);
 		}
 	}
 
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/lookup.operation.ts b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/lookup.operation.ts
index ccc11f6b745..73c48a5390c 100644
--- a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/lookup.operation.ts
+++ b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/table/lookup.operation.ts
@@ -9,6 +9,7 @@ import { NodeApiError } from 'n8n-workflow';
 
 import { updateDisplayOptions } from '@utils/utilities';
 
+import { stampItemIndexOnError } from '../../../../GenericFunctions';
 import { microsoftApiRequestAllItemsSkip } from '../../transport';
 import { tableRLC, workbookRLC, worksheetRLC } from '../common.descriptions';
 
@@ -95,6 +96,7 @@ export async function execute(
 				`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/tables/${tableId}/rows`,
 				{},
 				{},
+				i,
 			);
 
 			qs.$select = 'name';
@@ -106,6 +108,7 @@ export async function execute(
 				`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/tables/${tableId}/columns`,
 				{},
 				qs,
+				i,
 			);
 			columns = columns.map((column: IDataObject) => column.name);
 
@@ -155,7 +158,8 @@ export async function execute(
 				returnData.push(...executionErrorData);
 				continue;
 			}
-			throw error;
+			// A NodeError from the transport may be missing the itemIndex, add it
+			throw stampItemIndexOnError(error, i);
 		}
 	}
 
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/workbook/addWorksheet.operation.ts b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/workbook/addWorksheet.operation.ts
index ca1ce95ae35..fa349984a2e 100644
--- a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/workbook/addWorksheet.operation.ts
+++ b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/workbook/addWorksheet.operation.ts
@@ -7,6 +7,7 @@ import type {
 
 import { updateDisplayOptions } from '@utils/utilities';
 
+import { stampItemIndexOnError } from '../../../../GenericFunctions';
 import { microsoftApiRequest } from '../../transport';
 import { workbookRLC } from '../common.descriptions';
 
@@ -63,6 +64,10 @@ export async function execute(
 				'POST',
 				`/drive/items/${workbookId}/workbook/createSession`,
 				{ persistChanges: true },
+				undefined,
+				undefined,
+				undefined,
+				i,
 			);
 			const responseData = await microsoftApiRequest.call(
 				this,
@@ -72,6 +77,7 @@ export async function execute(
 				{},
 				'',
 				{ 'workbook-session-id': id },
+				i,
 			);
 			await microsoftApiRequest.call(
 				this,
@@ -81,6 +87,7 @@ export async function execute(
 				{},
 				'',
 				{ 'workbook-session-id': id },
+				i,
 			);
 
 			if (Array.isArray(responseData)) {
@@ -107,7 +114,8 @@ export async function execute(
 				returnData.push(...executionErrorData);
 				continue;
 			}
-			throw error;
+			// A NodeError from the transport may be missing the itemIndex, add it
+			throw stampItemIndexOnError(error, i);
 		}
 	}
 
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/workbook/deleteWorkbook.operation.ts b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/workbook/deleteWorkbook.operation.ts
index ee389316dbf..46f7187d044 100644
--- a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/workbook/deleteWorkbook.operation.ts
+++ b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/workbook/deleteWorkbook.operation.ts
@@ -3,6 +3,7 @@ import { NodeOperationError } from 'n8n-workflow';
 
 import { updateDisplayOptions } from '@utils/utilities';
 
+import { stampItemIndexOnError } from '../../../../GenericFunctions';
 import { microsoftApiRequest } from '../../transport';
 import { workbookRLC } from '../common.descriptions';
 
@@ -29,7 +30,16 @@ export async function execute(
 			}) as string;
 
 			try {
-				await microsoftApiRequest.call(this, 'DELETE', `/drive/items/${workbookId}`);
+				await microsoftApiRequest.call(
+					this,
+					'DELETE',
+					`/drive/items/${workbookId}`,
+					undefined,
+					undefined,
+					undefined,
+					undefined,
+					i,
+				);
 			} catch (error) {
 				if (error?.description.includes('Lock token does not match existing lock')) {
 					const errorDescription =
@@ -70,7 +80,8 @@ export async function execute(
 				returnData.push(...executionErrorData);
 				continue;
 			}
-			throw error;
+			// A NodeError from the transport may be missing the itemIndex, add it
+			throw stampItemIndexOnError(error, i);
 		}
 	}
 
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/workbook/getAll.operation.ts b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/workbook/getAll.operation.ts
index d2f121db875..8c7e6826daf 100644
--- a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/workbook/getAll.operation.ts
+++ b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/workbook/getAll.operation.ts
@@ -8,6 +8,7 @@ import { NodeOperationError } from 'n8n-workflow';
 
 import { updateDisplayOptions } from '@utils/utilities';
 
+import { stampItemIndexOnError } from '../../../../GenericFunctions';
 import {
 	getExcelCredentialType,
 	microsoftApiRequest,
@@ -100,6 +101,7 @@ export async function execute(
 					"/drive/root/search(q='.xlsx')",
 					{},
 					qs,
+					i,
 				);
 			} else {
 				qs.$top = this.getNodeParameter('limit', i);
@@ -109,6 +111,9 @@ export async function execute(
 					"/drive/root/search(q='.xlsx')",
 					{},
 					qs,
+					undefined,
+					undefined,
+					i,
 				);
 				responseData = responseData.value;
 			}
@@ -137,7 +142,8 @@ export async function execute(
 				returnData.push(...executionErrorData);
 				continue;
 			}
-			throw error;
+			// A NodeError from the transport may be missing the itemIndex, add it
+			throw stampItemIndexOnError(error, i);
 		}
 	}
 
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/append.operation.ts b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/append.operation.ts
index 0d14038da37..64294bf3c87 100644
--- a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/append.operation.ts
+++ b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/append.operation.ts
@@ -145,6 +145,7 @@ export async function execute(
 
 	const nodeVersion = this.getNode().typeVersion;
 
+	// Whole-batch operation: one request set for all items; request-level params (including the SP target) are read at item 0.
 	const workbookId = this.getNodeParameter('workbook', 0, undefined, {
 		extractValue: true,
 	}) as string;
@@ -159,6 +160,11 @@ export async function execute(
 		this,
 		'GET',
 		`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/usedRange`,
+		undefined,
+		undefined,
+		undefined,
+		undefined,
+		0,
 	);
 
 	let values: string[][] = [];
@@ -254,6 +260,10 @@ export async function execute(
 		'PATCH',
 		`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/range(address='${range}')`,
 		{ values },
+		undefined,
+		undefined,
+		undefined,
+		0,
 	);
 
 	const rawData = this.getNodeParameter('options.rawData', 0, false) as boolean;
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/clear.operation.ts b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/clear.operation.ts
index 427a6ab8e13..250e8baa4c5 100644
--- a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/clear.operation.ts
+++ b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/clear.operation.ts
@@ -2,6 +2,7 @@ import type { INodeExecutionData, IExecuteFunctions, INodeProperties } from 'n8n
 
 import { updateDisplayOptions } from '@utils/utilities';
 
+import { stampItemIndexOnError } from '../../../../GenericFunctions';
 import { microsoftApiRequest } from '../../transport';
 import { workbookRLC, worksheetRLC } from '../common.descriptions';
 
@@ -88,6 +89,10 @@ export async function execute(
 					'POST',
 					`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/range/clear`,
 					{ applyTo },
+					undefined,
+					undefined,
+					undefined,
+					i,
 				);
 			} else {
 				const range = this.getNodeParameter('range', i, '') as string;
@@ -96,6 +101,10 @@ export async function execute(
 					'POST',
 					`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/range(address='${range}')/clear`,
 					{ applyTo },
+					undefined,
+					undefined,
+					undefined,
+					i,
 				);
 			}
 
@@ -114,7 +123,8 @@ export async function execute(
 				returnData.push(...executionErrorData);
 				continue;
 			}
-			throw error;
+			// A NodeError from the transport may be missing the itemIndex, add it
+			throw stampItemIndexOnError(error, i);
 		}
 	}
 
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/deleteWorksheet.operation.ts b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/deleteWorksheet.operation.ts
index 0d2271a5a19..ca64ec3be12 100644
--- a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/deleteWorksheet.operation.ts
+++ b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/deleteWorksheet.operation.ts
@@ -2,6 +2,7 @@ import type { INodeExecutionData, IExecuteFunctions, INodeProperties } from 'n8n
 
 import { updateDisplayOptions } from '@utils/utilities';
 
+import { stampItemIndexOnError } from '../../../../GenericFunctions';
 import { microsoftApiRequest } from '../../transport';
 import { workbookRLC, worksheetRLC } from '../common.descriptions';
 
@@ -36,6 +37,11 @@ export async function execute(
 				this,
 				'DELETE',
 				`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}`,
+				undefined,
+				undefined,
+				undefined,
+				undefined,
+				i,
 			);
 
 			const executionData = this.helpers.constructExecutionMetaData(
@@ -53,7 +59,8 @@ export async function execute(
 				returnData.push(...executionErrorData);
 				continue;
 			}
-			throw error;
+			// A NodeError from the transport may be missing the itemIndex, add it
+			throw stampItemIndexOnError(error, i);
 		}
 	}
 
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/getAll.operation.ts b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/getAll.operation.ts
index c22b87f3318..78276d8a5a7 100644
--- a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/getAll.operation.ts
+++ b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/getAll.operation.ts
@@ -7,6 +7,7 @@ import type {
 
 import { updateDisplayOptions } from '@utils/utilities';
 
+import { stampItemIndexOnError } from '../../../../GenericFunctions';
 import { microsoftApiRequest, microsoftApiRequestAllItems } from '../../transport';
 import { workbookRLC } from '../common.descriptions';
 
@@ -90,6 +91,7 @@ export async function execute(
 					`/drive/items/${workbookId}/workbook/worksheets`,
 					{},
 					qs,
+					i,
 				);
 			} else {
 				qs.$top = this.getNodeParameter('limit', i);
@@ -99,6 +101,9 @@ export async function execute(
 					`/drive/items/${workbookId}/workbook/worksheets`,
 					{},
 					qs,
+					undefined,
+					undefined,
+					i,
 				);
 				responseData = responseData.value;
 			}
@@ -117,7 +122,8 @@ export async function execute(
 				returnData.push(...executionErrorData);
 				continue;
 			}
-			throw error;
+			// A NodeError from the transport may be missing the itemIndex, add it
+			throw stampItemIndexOnError(error, i);
 		}
 	}
 
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/readRows.operation.ts b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/readRows.operation.ts
index 26977a8078a..8b9b0738852 100644
--- a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/readRows.operation.ts
+++ b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/readRows.operation.ts
@@ -7,6 +7,7 @@ import type {
 
 import { updateDisplayOptions } from '@utils/utilities';
 
+import { stampItemIndexOnError } from '../../../../GenericFunctions';
 import type { ExcelResponse } from '../../helpers/interfaces';
 import { checkRange, prepareOutput } from '../../helpers/utils';
 import { microsoftApiRequest } from '../../transport';
@@ -159,6 +160,9 @@ export async function execute(
 					`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/range(address='${range}')`,
 					{},
 					qs,
+					undefined,
+					undefined,
+					i,
 				);
 			} else {
 				responseData = await microsoftApiRequest.call(
@@ -167,6 +171,9 @@ export async function execute(
 					`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/usedRange`,
 					{},
 					qs,
+					undefined,
+					undefined,
+					i,
 				);
 			}
 
@@ -199,7 +206,8 @@ export async function execute(
 				returnData.push(...executionErrorData);
 				continue;
 			}
-			throw error;
+			// A NodeError from the transport may be missing the itemIndex, add it
+			throw stampItemIndexOnError(error, i);
 		}
 	}
 
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/update.operation.ts b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/update.operation.ts
index b21a6b039e0..b5fca369865 100644
--- a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/update.operation.ts
+++ b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/update.operation.ts
@@ -252,6 +252,7 @@ export async function execute(
 			qs.$select = options.fields;
 		}
 
+		// Whole-batch operation: every param (including the SP target) is read at item 0.
 		const workbookId = this.getNodeParameter('workbook', 0, undefined, {
 			extractValue: true,
 		}) as string;
@@ -272,6 +273,11 @@ export async function execute(
 				this,
 				'PATCH',
 				`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/range(address='${range}')`,
+				undefined,
+				undefined,
+				undefined,
+				undefined,
+				0,
 			);
 		}
 
@@ -288,6 +294,9 @@ export async function execute(
 				`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/usedRange`,
 				undefined,
 				query,
+				undefined,
+				undefined,
+				0,
 			);
 
 			range = (worksheetData.address as string).split('!')[1];
@@ -305,6 +314,9 @@ export async function execute(
 				`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/range(address='${range}')`,
 				{ values },
 				qs,
+				undefined,
+				undefined,
+				0,
 			);
 
 			returnData.push(
@@ -361,6 +373,10 @@ export async function execute(
 				'PATCH',
 				`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/range(address='${range}')`,
 				{ values: updateSummary.updatedData },
+				undefined,
+				undefined,
+				undefined,
+				0,
 			);
 
 			const { updatedRows } = updateSummary;
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/upsert.operation.ts b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/upsert.operation.ts
index 91fe386c0ab..d387b618a77 100644
--- a/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/upsert.operation.ts
+++ b/packages/nodes-base/nodes/Microsoft/Excel/v2/actions/worksheet/upsert.operation.ts
@@ -204,6 +204,7 @@ export async function execute(
 	const nodeVersion = this.getNode().typeVersion;
 
 	try {
+		// Whole-batch operation: every param (including the SP target) is read at item 0.
 		const workbookId = this.getNodeParameter('workbook', 0, undefined, {
 			extractValue: true,
 		}) as string;
@@ -224,6 +225,11 @@ export async function execute(
 				this,
 				'PATCH',
 				`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/range(address='${range}')`,
+				undefined,
+				undefined,
+				undefined,
+				undefined,
+				0,
 			);
 		}
 
@@ -240,6 +246,9 @@ export async function execute(
 				`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/usedRange`,
 				undefined,
 				query,
+				undefined,
+				undefined,
+				0,
 			);
 
 			range = (worksheetData.address as string).split('!')[1];
@@ -256,6 +265,10 @@ export async function execute(
 				'PATCH',
 				`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/range(address='${range}')`,
 				{ values },
+				undefined,
+				undefined,
+				undefined,
+				0,
 			);
 		}
 
@@ -351,6 +364,9 @@ export async function execute(
 					`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/usedRange`,
 					undefined,
 					{ select: 'address' },
+					undefined,
+					undefined,
+					0,
 				);
 
 				const usedRange = parseAddress(address as string);
@@ -366,6 +382,10 @@ export async function execute(
 			'PATCH',
 			`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/range(address='${range}')`,
 			{ values: updateSummary.updatedData },
+			undefined,
+			undefined,
+			undefined,
+			0,
 		);
 
 		const { updatedRows } = updateSummary;
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/v2/descriptions/TargetDescription.ts b/packages/nodes-base/nodes/Microsoft/Excel/v2/descriptions/TargetDescription.ts
index 1d97b52e003..6ad9f02cb3d 100644
--- a/packages/nodes-base/nodes/Microsoft/Excel/v2/descriptions/TargetDescription.ts
+++ b/packages/nodes-base/nodes/Microsoft/Excel/v2/descriptions/TargetDescription.ts
@@ -45,7 +45,8 @@ export const userTargetRLC: INodeProperties = {
 			hint: 'The user principal name (UPN) or object ID of the user whose drive holds the workbooks',
 		},
 	],
-	description: 'The user whose drive the Service Principal should act on',
+	description:
+		"The user whose drive the Service Principal should act on. Evaluated per input item — an expression can target a different user for each item. Operations that write all rows in one request (append, update, upsert) use the first item's target.",
 	displayOptions: {
 		show: {
 			authentication: ['microsoftEntraServicePrincipalApi'],
@@ -69,7 +70,8 @@ export const driveTargetRLC: INodeProperties = {
 			hint: "The drive's own ID (looks like `b!…`), not a file or folder ID. Get it from `GET /users/{upn}/drive` (the `id` field).",
 		},
 	],
-	description: 'The drive the Service Principal should act on',
+	description:
+		"The drive the Service Principal should act on. Evaluated per input item — an expression can target a different drive for each item. Operations that write all rows in one request (append, update, upsert) use the first item's target.",
 	displayOptions: {
 		show: {
 			authentication: ['microsoftEntraServicePrincipalApi'],
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/v2/methods/listSearch.ts b/packages/nodes-base/nodes/Microsoft/Excel/v2/methods/listSearch.ts
index c5433c5518d..0c859171ef8 100644
--- a/packages/nodes-base/nodes/Microsoft/Excel/v2/methods/listSearch.ts
+++ b/packages/nodes-base/nodes/Microsoft/Excel/v2/methods/listSearch.ts
@@ -8,6 +8,9 @@ import { NodeOperationError } from 'n8n-workflow';
 
 import { getExcelCredentialType, microsoftApiRequest } from '../transport';
 
+// listSearch context throughout this file: the transport's trailing `0` is its
+// fallback read (getNodeParameter's 2nd arg here is a fallback, not an item index).
+
 export async function searchWorkbooks(
 	this: ILoadOptionsFunctions,
 	filter?: string,
@@ -39,6 +42,8 @@ export async function searchWorkbooks(
 			undefined,
 			undefined,
 			paginationToken, // paginationToken contains the full URL
+			undefined,
+			0,
 		);
 	} else {
 		response = await microsoftApiRequest.call(
@@ -50,6 +55,9 @@ export async function searchWorkbooks(
 				select: 'id,name,webUrl',
 				$top: 100,
 			},
+			undefined,
+			undefined,
+			0,
 		);
 	}
 
@@ -98,6 +106,9 @@ export async function getWorksheetsList(
 		{
 			select: 'id,name',
 		},
+		undefined,
+		undefined,
+		0,
 	);
 
 	return {
@@ -133,6 +144,10 @@ export async function getWorksheetTables(
 		'GET',
 		`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/tables`,
 		undefined,
+		undefined,
+		undefined,
+		undefined,
+		0,
 	);
 
 	const results: INodeListSearchItems[] = [];
@@ -149,6 +164,9 @@ export async function getWorksheetTables(
 			{
 				select: 'address',
 			},
+			undefined,
+			undefined,
+			0,
 		);
 
 		const [sheetName, sheetRange] = address.split('!' as string);
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/v2/methods/loadOptions.ts b/packages/nodes-base/nodes/Microsoft/Excel/v2/methods/loadOptions.ts
index 894b2ca0e6b..3c251ebf4be 100644
--- a/packages/nodes-base/nodes/Microsoft/Excel/v2/methods/loadOptions.ts
+++ b/packages/nodes-base/nodes/Microsoft/Excel/v2/methods/loadOptions.ts
@@ -3,6 +3,9 @@ import type { IDataObject, ILoadOptionsFunctions, INodePropertyOptions } from 'n
 import { microsoftApiRequest } from '../transport';
 import { parseAddress } from '../helpers/utils';
 
+// loadOptions context throughout this file: the transport's trailing `0` is its
+// fallback read (getNodeParameter's 2nd arg here is a fallback, not an item index).
+
 export async function getWorksheetColumnRow(
 	this: ILoadOptionsFunctions,
 ): Promise<INodePropertyOptions[]> {
@@ -24,6 +27,9 @@ export async function getWorksheetColumnRow(
 			`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/usedRange`,
 			undefined,
 			{ select: 'values' },
+			undefined,
+			undefined,
+			0,
 		);
 
 		columns = worksheetData.values[0] as string[];
@@ -36,6 +42,10 @@ export async function getWorksheetColumnRow(
 			'PATCH',
 			`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/range(address='${range}')`,
 			{ select: 'values' },
+			undefined,
+			undefined,
+			undefined,
+			0,
 		);
 
 		columns = worksheetData.values[0] as string[];
@@ -79,6 +89,10 @@ export async function getTableColumns(
 		'GET',
 		`/drive/items/${workbookId}/workbook/worksheets/${worksheetId}/tables/${tableId}/columns`,
 		{},
+		undefined,
+		undefined,
+		undefined,
+		0,
 	);
 
 	return (response.value as IDataObject[]).map((column) => ({
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/v2/test/transport/index.test.ts b/packages/nodes-base/nodes/Microsoft/Excel/v2/test/transport/index.test.ts
index faea954fd8a..0c48ddb7c62 100644
--- a/packages/nodes-base/nodes/Microsoft/Excel/v2/test/transport/index.test.ts
+++ b/packages/nodes-base/nodes/Microsoft/Excel/v2/test/transport/index.test.ts
@@ -9,12 +9,14 @@ import {
 import type { Mock, Mocked } from 'vitest';
 import { mockDeep } from 'vitest-mock-extended';
 
+import * as readRows from '../../actions/worksheet/readRows.operation';
 import { searchWorkbooks } from '../../methods/listSearch';
 import {
 	driveEndpoint,
 	getExcelCredentialType,
 	getServicePrincipalResourceRoot,
 	microsoftApiRequest,
+	microsoftApiRequestAllItemsSkip,
 	resolveScopeRoot,
 	validateResourceTargetId,
 } from '../../transport/index';
@@ -58,7 +60,16 @@ describe('Microsoft Excel Transport', () => {
 					graphApiBaseUrl: 'https://graph.microsoft.us',
 				});
 
-				await microsoftApiRequest.call(mockExecuteFunctions, 'GET', '/workbooks');
+				await microsoftApiRequest.call(
+					mockExecuteFunctions,
+					'GET',
+					'/workbooks',
+					undefined,
+					undefined,
+					undefined,
+					undefined,
+					0,
+				);
 
 				expect(mockRequestOAuth2).toHaveBeenCalledWith(
 					'microsoftExcelOAuth2Api',
@@ -80,7 +91,16 @@ describe('Microsoft Excel Transport', () => {
 					graphApiBaseUrl: '',
 				});
 
-				await microsoftApiRequest.call(mockExecuteFunctions, 'GET', '/workbooks');
+				await microsoftApiRequest.call(
+					mockExecuteFunctions,
+					'GET',
+					'/workbooks',
+					undefined,
+					undefined,
+					undefined,
+					undefined,
+					0,
+				);
 
 				expect(mockRequestOAuth2).toHaveBeenCalledWith(
 					'microsoftExcelOAuth2Api',
@@ -101,7 +121,16 @@ describe('Microsoft Excel Transport', () => {
 					},
 				});
 
-				await microsoftApiRequest.call(mockExecuteFunctions, 'GET', '/workbooks');
+				await microsoftApiRequest.call(
+					mockExecuteFunctions,
+					'GET',
+					'/workbooks',
+					undefined,
+					undefined,
+					undefined,
+					undefined,
+					0,
+				);
 
 				expect(mockRequestOAuth2).toHaveBeenCalledWith(
 					'microsoftExcelOAuth2Api',
@@ -123,7 +152,16 @@ describe('Microsoft Excel Transport', () => {
 					graphApiBaseUrl: 'https://graph.microsoft.com/',
 				});
 
-				await microsoftApiRequest.call(mockExecuteFunctions, 'GET', '/workbooks');
+				await microsoftApiRequest.call(
+					mockExecuteFunctions,
+					'GET',
+					'/workbooks',
+					undefined,
+					undefined,
+					undefined,
+					undefined,
+					0,
+				);
 
 				expect(mockRequestOAuth2).toHaveBeenCalledWith(
 					'microsoftExcelOAuth2Api',
@@ -145,7 +183,16 @@ describe('Microsoft Excel Transport', () => {
 					graphApiBaseUrl: 'https://graph.microsoft.com///',
 				});
 
-				await microsoftApiRequest.call(mockExecuteFunctions, 'GET', '/workbooks');
+				await microsoftApiRequest.call(
+					mockExecuteFunctions,
+					'GET',
+					'/workbooks',
+					undefined,
+					undefined,
+					undefined,
+					undefined,
+					0,
+				);
 
 				expect(mockRequestOAuth2).toHaveBeenCalledWith(
 					'microsoftExcelOAuth2Api',
@@ -167,7 +214,16 @@ describe('Microsoft Excel Transport', () => {
 					graphApiBaseUrl: 'https://graph.microsoft.us',
 				});
 
-				await microsoftApiRequest.call(mockExecuteFunctions, 'GET', '/workbooks');
+				await microsoftApiRequest.call(
+					mockExecuteFunctions,
+					'GET',
+					'/workbooks',
+					undefined,
+					undefined,
+					undefined,
+					undefined,
+					0,
+				);
 
 				expect(mockRequestOAuth2).toHaveBeenCalledWith(
 					'microsoftExcelOAuth2Api',
@@ -189,7 +245,16 @@ describe('Microsoft Excel Transport', () => {
 					graphApiBaseUrl: 'https://dod-graph.microsoft.us',
 				});
 
-				await microsoftApiRequest.call(mockExecuteFunctions, 'GET', '/workbooks');
+				await microsoftApiRequest.call(
+					mockExecuteFunctions,
+					'GET',
+					'/workbooks',
+					undefined,
+					undefined,
+					undefined,
+					undefined,
+					0,
+				);
 
 				expect(mockRequestOAuth2).toHaveBeenCalledWith(
 					'microsoftExcelOAuth2Api',
@@ -211,7 +276,16 @@ describe('Microsoft Excel Transport', () => {
 					graphApiBaseUrl: 'https://microsoftgraph.chinacloudapi.cn',
 				});
 
-				await microsoftApiRequest.call(mockExecuteFunctions, 'GET', '/workbooks');
+				await microsoftApiRequest.call(
+					mockExecuteFunctions,
+					'GET',
+					'/workbooks',
+					undefined,
+					undefined,
+					undefined,
+					undefined,
+					0,
+				);
 
 				expect(mockRequestOAuth2).toHaveBeenCalledWith(
 					'microsoftExcelOAuth2Api',
@@ -235,7 +309,16 @@ describe('Microsoft Excel Transport', () => {
 			it('should use microsoftExcelOAuth2Api when authentication is not set (backward compatibility)', async () => {
 				mockExecuteFunctions.getNodeParameter.mockReturnValue(undefined);
 
-				await microsoftApiRequest.call(mockExecuteFunctions, 'GET', '/workbooks');
+				await microsoftApiRequest.call(
+					mockExecuteFunctions,
+					'GET',
+					'/workbooks',
+					undefined,
+					undefined,
+					undefined,
+					undefined,
+					0,
+				);
 
 				expect(mockExecuteFunctions.getCredentials).toHaveBeenCalledWith('microsoftExcelOAuth2Api');
 				expect(mockRequestOAuth2).toHaveBeenCalledWith(
@@ -247,7 +330,16 @@ describe('Microsoft Excel Transport', () => {
 			it('should use microsoftExcelOAuth2Api when explicitly selected', async () => {
 				mockExecuteFunctions.getNodeParameter.mockReturnValue('microsoftExcelOAuth2Api');
 
-				await microsoftApiRequest.call(mockExecuteFunctions, 'GET', '/workbooks');
+				await microsoftApiRequest.call(
+					mockExecuteFunctions,
+					'GET',
+					'/workbooks',
+					undefined,
+					undefined,
+					undefined,
+					undefined,
+					0,
+				);
 
 				expect(mockExecuteFunctions.getCredentials).toHaveBeenCalledWith('microsoftExcelOAuth2Api');
 				expect(mockRequestOAuth2).toHaveBeenCalledWith(
@@ -259,7 +351,16 @@ describe('Microsoft Excel Transport', () => {
 			it('should use microsoftOAuth2Api when the generic credential is selected', async () => {
 				mockExecuteFunctions.getNodeParameter.mockReturnValue('microsoftOAuth2Api');
 
-				await microsoftApiRequest.call(mockExecuteFunctions, 'GET', '/workbooks');
+				await microsoftApiRequest.call(
+					mockExecuteFunctions,
+					'GET',
+					'/workbooks',
+					undefined,
+					undefined,
+					undefined,
+					undefined,
+					0,
+				);
 
 				expect(mockExecuteFunctions.getCredentials).toHaveBeenCalledWith('microsoftOAuth2Api');
 				expect(mockRequestOAuth2).toHaveBeenCalledWith('microsoftOAuth2Api', expect.anything());
@@ -268,7 +369,16 @@ describe('Microsoft Excel Transport', () => {
 			it('should resolve the credential name from the authentication parameter at index 0', async () => {
 				mockExecuteFunctions.getNodeParameter.mockReturnValue('microsoftOAuth2Api');
 
-				await microsoftApiRequest.call(mockExecuteFunctions, 'GET', '/workbooks');
+				await microsoftApiRequest.call(
+					mockExecuteFunctions,
+					'GET',
+					'/workbooks',
+					undefined,
+					undefined,
+					undefined,
+					undefined,
+					0,
+				);
 
 				expect(mockExecuteFunctions.getNodeParameter).toHaveBeenCalledWith('authentication', 0);
 			});
@@ -276,7 +386,16 @@ describe('Microsoft Excel Transport', () => {
 			it('should honor graphApiBaseUrl from the generic credential (sovereign cloud)', async () => {
 				mockExecuteFunctions.getNodeParameter.mockReturnValue('microsoftOAuth2Api');
 
-				await microsoftApiRequest.call(mockExecuteFunctions, 'GET', '/workbooks');
+				await microsoftApiRequest.call(
+					mockExecuteFunctions,
+					'GET',
+					'/workbooks',
+					undefined,
+					undefined,
+					undefined,
+					undefined,
+					0,
+				);
 
 				expect(mockExecuteFunctions.getCredentials).toHaveBeenCalledWith('microsoftOAuth2Api');
 				expect(mockRequestOAuth2).toHaveBeenCalledWith(
@@ -386,7 +505,16 @@ describe('Microsoft Excel Transport', () => {
 		});
 
 		it('routes through requestWithAuthentication, never requestOAuth2', async () => {
-			await microsoftApiRequest.call(mockExecuteFunctions, 'GET', SCOPED_RESOURCE);
+			await microsoftApiRequest.call(
+				mockExecuteFunctions,
+				'GET',
+				SCOPED_RESOURCE,
+				undefined,
+				undefined,
+				undefined,
+				undefined,
+				0,
+			);
 
 			expect(mockExecuteFunctions.getCredentials).toHaveBeenCalledWith(
 				'microsoftEntraServicePrincipalApi',
@@ -399,7 +527,16 @@ describe('Microsoft Excel Transport', () => {
 		});
 
 		it('rebases /me onto /users/{id}/drive for the user target', async () => {
-			await microsoftApiRequest.call(mockExecuteFunctions, 'GET', SCOPED_RESOURCE);
+			await microsoftApiRequest.call(
+				mockExecuteFunctions,
+				'GET',
+				SCOPED_RESOURCE,
+				undefined,
+				undefined,
+				undefined,
+				undefined,
+				0,
+			);
 
 			expect(mockRequestWithAuthentication).toHaveBeenCalledWith(
 				'microsoftEntraServicePrincipalApi',
@@ -421,7 +558,16 @@ describe('Microsoft Excel Transport', () => {
 					(name in params ? params[name as string] : fallback) as never,
 			);
 
-			await microsoftApiRequest.call(mockExecuteFunctions, 'GET', SCOPED_RESOURCE);
+			await microsoftApiRequest.call(
+				mockExecuteFunctions,
+				'GET',
+				SCOPED_RESOURCE,
+				undefined,
+				undefined,
+				undefined,
+				undefined,
+				0,
+			);
 
 			expect(mockRequestWithAuthentication).toHaveBeenCalledWith(
 				'microsoftEntraServicePrincipalApi',
@@ -434,7 +580,16 @@ describe('Microsoft Excel Transport', () => {
 		it('rebases onto /drives/{id} for the drive target (no double /drive)', async () => {
 			setSpParams({ resourceTarget: 'drive', driveTarget: { value: 'b!abc-123_XYZ' } });
 
-			await microsoftApiRequest.call(mockExecuteFunctions, 'GET', SCOPED_RESOURCE);
+			await microsoftApiRequest.call(
+				mockExecuteFunctions,
+				'GET',
+				SCOPED_RESOURCE,
+				undefined,
+				undefined,
+				undefined,
+				undefined,
+				0,
+			);
 
 			expect(mockRequestWithAuthentication).toHaveBeenCalledWith(
 				'microsoftEntraServicePrincipalApi',
@@ -449,7 +604,16 @@ describe('Microsoft Excel Transport', () => {
 				graphApiBaseUrl: 'https://graph.microsoft.us',
 			});
 
-			await microsoftApiRequest.call(mockExecuteFunctions, 'GET', SCOPED_RESOURCE);
+			await microsoftApiRequest.call(
+				mockExecuteFunctions,
+				'GET',
+				SCOPED_RESOURCE,
+				undefined,
+				undefined,
+				undefined,
+				undefined,
+				0,
+			);
 
 			expect(mockRequestWithAuthentication).toHaveBeenCalledWith(
 				'microsoftEntraServicePrincipalApi',
@@ -470,6 +634,8 @@ describe('Microsoft Excel Transport', () => {
 				{},
 				{},
 				nextLink,
+				undefined,
+				0,
 			);
 
 			expect(mockRequestWithAuthentication).toHaveBeenCalledWith(
@@ -478,9 +644,99 @@ describe('Microsoft Excel Transport', () => {
 			);
 		});
 
+		// The target RLC accepts expressions, so execute call sites pass the loop index
+		// and the transport must resolve the target at exactly that index.
+		const setSpParamsPerItem = () => {
+			mockExecuteFunctions.getNodeParameter.mockImplementation((name, itemIndex, fallback) => {
+				if (name === 'authentication') return 'microsoftEntraServicePrincipalApi' as never;
+				if (name === 'resourceTarget') return 'user' as never;
+				if (name === 'userTarget')
+					return { value: itemIndex === 1 ? 'john@contoso.com' : 'jane@contoso.com' } as never;
+				return fallback as never;
+			});
+		};
+
+		it('resolves the target at the passed itemIndex', async () => {
+			setSpParamsPerItem();
+
+			await microsoftApiRequest.call(
+				mockExecuteFunctions,
+				'GET',
+				SCOPED_RESOURCE,
+				undefined,
+				undefined,
+				undefined,
+				undefined,
+				0,
+			);
+			await microsoftApiRequest.call(
+				mockExecuteFunctions,
+				'GET',
+				SCOPED_RESOURCE,
+				undefined,
+				undefined,
+				undefined,
+				undefined,
+				1,
+			);
+
+			expect(mockRequestWithAuthentication).toHaveBeenNthCalledWith(
+				1,
+				'microsoftEntraServicePrincipalApi',
+				expect.objectContaining({
+					uri: `${baseUrl}/v1.0/users/jane%40contoso.com/drive/items/WB/workbook/worksheets/WS/usedRange`,
+				}),
+			);
+			expect(mockRequestWithAuthentication).toHaveBeenNthCalledWith(
+				2,
+				'microsoftEntraServicePrincipalApi',
+				expect.objectContaining({
+					uri: `${baseUrl}/v1.0/users/john%40contoso.com/drive/items/WB/workbook/worksheets/WS/usedRange`,
+				}),
+			);
+		});
+
+		it('keeps the passed itemIndex root on every $skip page (AllItemsSkip)', async () => {
+			setSpParamsPerItem();
+			mockRequestWithAuthentication
+				.mockResolvedValueOnce({ value: [{ id: 'row-1' }] })
+				.mockResolvedValueOnce({ value: [] });
+
+			await microsoftApiRequestAllItemsSkip.call(
+				mockExecuteFunctions,
+				'value',
+				'GET',
+				SCOPED_RESOURCE,
+				{},
+				{},
+				1,
+			);
+
+			const johnUri = `${baseUrl}/v1.0/users/john%40contoso.com/drive/items/WB/workbook/worksheets/WS/usedRange`;
+			expect(mockRequestWithAuthentication).toHaveBeenNthCalledWith(
+				1,
+				'microsoftEntraServicePrincipalApi',
+				expect.objectContaining({ uri: johnUri }),
+			);
+			expect(mockRequestWithAuthentication).toHaveBeenNthCalledWith(
+				2,
+				'microsoftEntraServicePrincipalApi',
+				expect.objectContaining({ uri: johnUri }),
+			);
+		});
+
 		it('throws OperationalError when a scoped resource does not start with /drive', async () => {
 			await expect(
-				microsoftApiRequest.call(mockExecuteFunctions, 'GET', '/workbooks'),
+				microsoftApiRequest.call(
+					mockExecuteFunctions,
+					'GET',
+					'/workbooks',
+					undefined,
+					undefined,
+					undefined,
+					undefined,
+					0,
+				),
 			).rejects.toThrow(OperationalError);
 			expect(mockRequestWithAuthentication).not.toHaveBeenCalled();
 		});
@@ -489,7 +745,16 @@ describe('Microsoft Excel Transport', () => {
 			mockRequestWithAuthentication.mockRejectedValue(new Error('boom'));
 
 			await expect(
-				microsoftApiRequest.call(mockExecuteFunctions, 'GET', SCOPED_RESOURCE),
+				microsoftApiRequest.call(
+					mockExecuteFunctions,
+					'GET',
+					SCOPED_RESOURCE,
+					undefined,
+					undefined,
+					undefined,
+					undefined,
+					0,
+				),
 			).rejects.toThrow(NodeApiError);
 		});
 
@@ -501,6 +766,10 @@ describe('Microsoft Excel Transport', () => {
 				'PATCH',
 				"/drive/items/WB/workbook/worksheets/WS/range(address='A1:A1')",
 				body,
+				undefined,
+				undefined,
+				undefined,
+				0,
 			);
 
 			expect(mockRequestWithAuthentication).toHaveBeenCalledWith(
@@ -521,6 +790,10 @@ describe('Microsoft Excel Transport', () => {
 				'POST',
 				'/drive/items/WB/workbook/worksheets/add',
 				body,
+				undefined,
+				undefined,
+				undefined,
+				0,
 			);
 
 			expect(mockRequestWithAuthentication).toHaveBeenCalledWith(
@@ -588,7 +861,7 @@ describe('Microsoft Excel Transport', () => {
 		it('returns undefined for the OAuth2 credential', () => {
 			mockExecuteFunctions.getNodeParameter.mockReturnValue('microsoftExcelOAuth2Api');
 
-			expect(resolveScopeRoot.call(mockExecuteFunctions)).toBeUndefined();
+			expect(resolveScopeRoot.call(mockExecuteFunctions, 0)).toBeUndefined();
 		});
 
 		it('resolves the user root for the Service Principal credential', () => {
@@ -601,7 +874,7 @@ describe('Microsoft Excel Transport', () => {
 				(name) => params[name as string] as never,
 			);
 
-			expect(resolveScopeRoot.call(mockExecuteFunctions)).toBe('/users/jane%40contoso.com');
+			expect(resolveScopeRoot.call(mockExecuteFunctions, 0)).toBe('/users/jane%40contoso.com');
 		});
 
 		it('falls back to the user target when resourceTarget is unpersisted', () => {
@@ -615,7 +888,43 @@ describe('Microsoft Excel Transport', () => {
 					(name in params ? params[name as string] : fallback) as never,
 			);
 
-			expect(resolveScopeRoot.call(mockExecuteFunctions)).toBe('/users/jane%40contoso.com');
+			expect(resolveScopeRoot.call(mockExecuteFunctions, 0)).toBe('/users/jane%40contoso.com');
+		});
+	});
+
+	describe('execute error attribution', () => {
+		it('stamps context.itemIndex on a NodeError from the failing item', async () => {
+			const mockRequestWithAuthentication = vi
+				.fn()
+				.mockResolvedValue({ values: [['row'], ['jane-row']] });
+			mockExecuteFunctions.helpers.requestWithAuthentication = mockRequestWithAuthentication;
+			(mockExecuteFunctions.helpers.constructExecutionMetaData as Mock).mockReturnValue([]);
+			mockExecuteFunctions.continueOnFail.mockReturnValue(false);
+			mockExecuteFunctions.getCredentials.mockResolvedValue({ graphApiBaseUrl: '' });
+			mockExecuteFunctions.getNodeParameter.mockImplementation((name, itemIndex, fallback) => {
+				const params: Record<string, unknown> = {
+					authentication: 'microsoftEntraServicePrincipalApi',
+					resourceTarget: 'user',
+					workbook: 'WB',
+					worksheet: 'WS',
+				};
+				if (name === 'userTarget')
+					return { value: itemIndex === 1 ? 'not a user' : 'jane@contoso.com' } as never;
+				return (name in params ? params[name as string] : fallback) as never;
+			});
+
+			let caught: unknown;
+			try {
+				await readRows.execute.call(mockExecuteFunctions, [{ json: {} }, { json: {} }]);
+			} catch (error) {
+				caught = error;
+			}
+
+			expect(caught).toBeInstanceOf(NodeOperationError);
+			expect((caught as NodeOperationError).message).toBe('The target ID is not valid');
+			expect((caught as NodeOperationError).context.itemIndex).toBe(1);
+			// Item 0 resolved and requested normally before item 1 failed validation.
+			expect(mockRequestWithAuthentication).toHaveBeenCalledTimes(1);
 		});
 	});
 });
diff --git a/packages/nodes-base/nodes/Microsoft/Excel/v2/transport/index.ts b/packages/nodes-base/nodes/Microsoft/Excel/v2/transport/index.ts
index aee323e9a2a..293d4b01b2a 100644
--- a/packages/nodes-base/nodes/Microsoft/Excel/v2/transport/index.ts
+++ b/packages/nodes-base/nodes/Microsoft/Excel/v2/transport/index.ts
@@ -86,12 +86,14 @@ export function driveEndpoint(root: string): string {
 
 /**
  * App-only Graph scope root (`/users/{id}` or `/drives/{id}`), or `undefined` for OAuth2 (`/me`).
- * The `|| 'user'` and `''` fallbacks cover load-options, where the 2nd getNodeParameter arg is the
- * fallback (not an itemIndex) — an unpersisted target then coalesces to the "target ID required" error.
+ * The target RLC accepts expressions and is resolved per item: execute call sites pass the loop's
+ * item index; load-options call sites pass a literal 0 — there the 2nd getNodeParameter arg is the
+ * fallback (not an itemIndex), which the `|| 'user'` and `''` fallbacks cover, so an unpersisted
+ * target coalesces to the "target ID required" error.
  */
 export function resolveScopeRoot(
 	this: IExecuteFunctions | ILoadOptionsFunctions,
-	itemIndex = 0,
+	itemIndex: number,
 ): string | undefined {
 	if (getExcelCredentialType.call(this) !== 'microsoftEntraServicePrincipalApi') {
 		return undefined;
@@ -105,14 +107,19 @@ export function resolveScopeRoot(
 	return getServicePrincipalResourceRoot(target, id, this.getNode());
 }
 
+// `itemIndex` is REQUIRED so the compiler enforces the per-item contract: execute
+// call sites pass the loop index (batch ops pass a literal 0, matching their item-0
+// param reads); loadOptions/listSearch call sites pass a literal 0, where
+// `getNodeParameter`'s 2nd arg is a fallback, not an index.
 export async function microsoftApiRequest(
 	this: IExecuteFunctions | ILoadOptionsFunctions,
 	method: IHttpRequestMethods,
 	resource: string,
 	body: any = {},
 	qs: IDataObject = {},
-	uri?: string,
+	uri: string | undefined,
 	headers: IDataObject = {},
+	itemIndex: number,
 ): Promise<any> {
 	const credentialType = getExcelCredentialType.call(this);
 	const isServicePrincipal = credentialType === 'microsoftEntraServicePrincipalApi';
@@ -124,9 +131,9 @@ export async function microsoftApiRequest(
 	).replace(/\/+$/, '');
 
 	let uriToUse = uri || `${baseUrl}/v1.0/me${resource}`;
-	// App-only has no `/me`; rebase page-1 onto the user/drive root. Absolute `@odata.nextLink` pages pass through.
+	// App-only has no `/me`; rebase page-1 onto the item's user/drive root. Absolute `@odata.nextLink` pages pass through.
 	if (!uri && isServicePrincipal) {
-		const driveScopeRoot = resolveScopeRoot.call(this);
+		const driveScopeRoot = resolveScopeRoot.call(this, itemIndex);
 		if (driveScopeRoot) {
 			// Programmer error, not user input: every Excel resource is `/drive`-rooted.
 			if (!resource.startsWith('/drive')) {
@@ -159,6 +166,7 @@ export async function microsoftApiRequest(
 		}
 		return await this.helpers.requestOAuth2.call(this, credentialType, options);
 	} catch (error) {
+		// The operation's catch stamps the failing item's index.
 		throw new NodeApiError(this.getNode(), error as JsonObject);
 	}
 }
@@ -170,6 +178,7 @@ export async function microsoftApiRequestAllItems(
 	endpoint: string,
 	body: any = {},
 	query: IDataObject = {},
+	itemIndex: number,
 ): Promise<any> {
 	const returnData: IDataObject[] = [];
 
@@ -178,7 +187,16 @@ export async function microsoftApiRequestAllItems(
 	query.$top = 100;
 
 	do {
-		responseData = await microsoftApiRequest.call(this, method, endpoint, body, query, uri);
+		responseData = await microsoftApiRequest.call(
+			this,
+			method,
+			endpoint,
+			body,
+			query,
+			uri,
+			undefined,
+			itemIndex,
+		);
 		uri = responseData['@odata.nextLink'];
 		if (uri?.includes('$top')) {
 			delete query.$top;
@@ -196,6 +214,7 @@ export async function microsoftApiRequestAllItemsSkip(
 	endpoint: string,
 	body: any = {},
 	query: IDataObject = {},
+	itemIndex: number,
 ): Promise<any> {
 	const returnData: IDataObject[] = [];
 
@@ -204,7 +223,17 @@ export async function microsoftApiRequestAllItemsSkip(
 	query.$skip = 0;
 
 	do {
-		responseData = await microsoftApiRequest.call(this, method, endpoint, body, query);
+		// Every `$skip` page re-issues the scoped relative URL, re-resolved at the same index.
+		responseData = await microsoftApiRequest.call(
+			this,
+			method,
+			endpoint,
+			body,
+			query,
+			undefined,
+			undefined,
+			itemIndex,
+		);
 		query.$skip += query.$top;
 		returnData.push.apply(returnData, responseData[propertyName] as IDataObject[]);
 	} while (responseData.value.length !== 0);