How do I install the Excel Online skill?

Run npx skillmds@latest add modbender/excel-online in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Excel Online safe to use?

This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. Capability flags: makes network calls. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Excel Online?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Excel Online free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Excel Online?

modbender (@modbender) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Excel Online by modbender — Agent Skill

Name: Excel Online
Rating: 4.2 (5 reviews)
Author: modbender

File contents

Excel Online (Microsoft Graph)

Excel automation via Microsoft 365.

Environment

export MICROSOFT_ACCESS_TOKEN="xxxxxxxxxx"

List Workbooks in OneDrive

curl "https://graph.microsoft.com/v1.0/me/drive/root/search(q='.xlsx')" \
  -H "Authorization: Bearer $MICROSOFT_ACCESS_TOKEN"

Get Worksheets

curl "https://graph.microsoft.com/v1.0/me/drive/items/{item-id}/workbook/worksheets" \
  -H "Authorization: Bearer $MICROSOFT_ACCESS_TOKEN"

Read Range

curl "https://graph.microsoft.com/v1.0/me/drive/items/{item-id}/workbook/worksheets/{sheet-name}/range(address='A1:D10')" \
  -H "Authorization: Bearer $MICROSOFT_ACCESS_TOKEN"

Write to Range

curl -X PATCH "https://graph.microsoft.com/v1.0/me/drive/items/{item-id}/workbook/worksheets/{sheet-name}/range(address='A1:B2')" \
  -H "Authorization: Bearer $MICROSOFT_ACCESS_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"values": [["Name", "Value"], ["Test", 123]]}'

Add Worksheet

curl -X POST "https://graph.microsoft.com/v1.0/me/drive/items/{item-id}/workbook/worksheets" \
  -H "Authorization: Bearer $MICROSOFT_ACCESS_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"name": "NewSheet"}'

Create Table

curl -X POST "https://graph.microsoft.com/v1.0/me/drive/items/{item-id}/workbook/worksheets/{sheet-name}/tables/add" \
  -H "Authorization: Bearer $MICROSOFT_ACCESS_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"address": "A1:C5", "hasHeaders": true}'

Run Formula

curl -X POST "https://graph.microsoft.com/v1.0/me/drive/items/{item-id}/workbook/functions/sum" \
  -H "Authorization: Bearer $MICROSOFT_ACCESS_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"values": [[1, 2, 3, 4, 5]]}'

Links

OneDrive: https://onedrive.live.com
Docs: https://docs.microsoft.com/en-us/graph/api/resources/excel

---name: excel-onlinedescription: Read and write Excel files via Microsoft Graph API. Manage workbooks, worksheets, and cells in OneDrive/SharePoint.--- # Excel Online (Microsoft Graph) Excel automation via Microsoft 365. ## Environment ```bash export MICROSOFT_ACCESS_TOKEN="xxxxxxxxxx" ``` ## List Workbooks in OneDrive ```bash curl "https://graph.microsoft.com/v1.0/me/drive/root/search(q='.xlsx')" \ -H "Authorization: Bearer $MICROSOFT_ACCESS_TOKEN" ``` ## Get Worksheets ```bash curl "https://graph.microsoft.com/v1.0/me/drive/items/{item-id}/workbook/worksheets" \ -H "Authorization: Bearer $MICROSOFT_ACCESS_TOKEN" ``` ## Read Range ```bash curl "https://graph.microsoft.com/v1.0/me/drive/items/{item-id}/workbook/worksheets/{sheet-name}/range(address='A1:D10')" \ -H "Authorization: Bearer $MICROSOFT_ACCESS_TOKEN" ``` ## Write to Range ```bash curl -X PATCH "https://graph.microsoft.com/v1.0/me/drive/items/{item-id}/workbook/worksheets/{sheet-name}/range(address='A1:B2')" \ -H "Authorization: Bearer $MICROSOFT_ACCESS_TOKEN" \ -H "Content-Type: application/json" \ -d '{"values": [["Name", "Value"], ["Test", 123]]}' ``` ## Add Worksheet ```bash curl -X POST "https://graph.microsoft.com/v1.0/me/drive/items/{item-id}/workbook/worksheets" \ -H "Authorization: Bearer $MICROSOFT_ACCESS_TOKEN" \ -H "Content-Type: application/json" \ -d '{"name": "NewSheet"}' ``` ## Create Table ```bash curl -X POST "https://graph.microsoft.com/v1.0/me/drive/items/{item-id}/workbook/worksheets/{sheet-name}/tables/add" \ -H "Authorization: Bearer $MICROSOFT_ACCESS_TOKEN" \ -H "Content-Type: application/json" \ -d '{"address": "A1:C5", "hasHeaders": true}' ``` ## Run Formula ```bash curl -X POST "https://graph.microsoft.com/v1.0/me/drive/items/{item-id}/workbook/functions/sum" \ -H "Authorization: Bearer $MICROSOFT_ACCESS_TOKEN" \ -H "Content-Type: application/json" \ -d '{"values": [[1, 2, 3, 4, 5]]}' ``` ## Links - OneDrive: https://onedrive.live.com - Docs: https://docs.microsoft.com/en-us/graph/api/resources/excel

Frequently asked questions

Excel Online