sbroenne/mcp-server-excel

Automate real Microsoft Excel with AI via MCP Server or CLI — Power Query, DAX, VBA, PivotTables, charts, and 326 operations.

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README

ExcelMcp - MCP Server for Microsoft Excel

Website · Installation · Features · Troubleshooting · 1-minute demo

Automate real Microsoft Excel with AI. Excel MCP Server lets GitHub Copilot, Claude, ChatGPT, and other agents control Excel through natural-language requests—using either MCP or a token-efficient CLI.

Unlike file-parser tools, ExcelMcp drives the actual Excel application through its official COM API. It can refresh Power Query, recalculate formulas, evaluate DAX, run VBA and Python =PY(), and preserve PivotTables, charts, macros, the Data Model, and workbook formatting.

31 tools with 325 operations cover end-to-end Excel automation.

[!IMPORTANT] Requires Windows, Microsoft Excel 2016 or later, and an interactive desktop. It is not intended for Linux, macOS, or server-side batch processing.

🚀 Get Started

Use case	Recommended path
VS Code	Install the extension
Claude Desktop or another MCP client	Install the MCP Server
Coding agents and scripts	Install the CLI
Not sure which to choose?	Read the installation overview

Close open Excel workbooks before starting; ExcelMcp requires exclusive access while automating them.

What You Can Automate

Data & analytics: Power Query, DAX, Power Pivot, Excel Tables, PivotTables, and data connections.
Cells & workbooks: ranges, formulas, formatting, worksheets, files, calculation, and named ranges.
Charts & visuals: charts, slicers, conditional formatting, screenshots, drawings, and sparklines.
Automation & advanced: VBA, Python in Excel, Goal Seek, scenarios, data tables, windows, and XML Maps.

Explore the complete reference for all 325 operations.

See It in Action

Ask in plain language:

"Import products.csv with Power Query and load it to the Data Model."
"Create a PivotTable showing revenue by region, then add a column chart."
"Use Goal Seek to find the price that produces $100,000 profit."
"Show me Excel while you work."

Because Excel performs the work, you can inspect results live and continue editing the workbook normally.

See more examples and use cases.

MCP Server or CLI?

Both entry points expose the same Core commands and behavior.

Interface	Best for	Why
MCP Server	Conversational assistants and exploratory work	Rich schemas, tool discovery, and persistent sessions
CLI (`excelcli`)	Coding agents, automation, and scripts	One compact tool surface and substantially lower token usage

The MCP Server calls the ExcelMcp service in-process. The CLI uses a background daemon so workbook sessions persist across commands.

AI assistant or script
        │
   MCP Server / CLI
        │
 ExcelMcp Core commands
        │
 Real Excel COM API

Read the architecture or browse the MCP Server and CLI guides.

⭐ GitHub Star History

📋 Additional Information

Documentation · Changelog · Contributing · Security · Privacy

License: MIT License - see LICENSE file

Other projects by the author:

PowerPoint MCP Server — AI-powered PowerPoint automation via MCP, the sister project to this one
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Windows MCP Server — AI-powered Windows automation via MCP
OBS Studio MCP Server — AI-powered OBS Studio automation