office-mcp

Let Claude drive Microsoft Office on Windows.

This is an MCP server for PowerPoint, Excel and Word. You ask for something in plain language, and Claude builds it in the app you already have open. No uploading, no downloading, no generated file to import. You watch the slides and cells change on screen.

> Build a 3 slide deck about our Q3 numbers. Dark theme, green accent,
> add the chart from the spreadsheet, and animate the bullets.

What it can do

• PowerPoint: slides, text, shapes, charts, tables, images, SmartArt, themes, animations, transitions, sections, slide shows
• Excel: values, formulas, formatting, sorting, filters, dropdowns, conditional formatting, charts, pivot tables
• Word: paragraphs, styles, tables, images, footnotes, captions, a table of contents, and everything a thesis layout needs

It can also look at its own work. Claude exports a slide or a cell range to an image, checks whether the layout came out right, and fixes it. That one feature is the difference between a deck that looks designed and one that looks generated.

132 tools in total. The full list is in the tool reference.

Install

You need Windows, Office 2019 or newer, and Python 3.11 or newer.

git clone https://github.com/JulianPoleszczuk/office-mcp.git
cd office-mcp

python -m venv .venv
.\.venv\Scripts\Activate.ps1

pip install -r requirements.txt
python .venv\Scripts\pywin32_postinstall.py -install

That last line registers the DLLs that Office automation needs. Skipping it is the usual reason things fail on the first run.

Connect it to Claude

In Claude Code:

claude mcp add office -- C:\path\to\office-mcp\.venv\Scripts\python.exe C:\path\to\office-mcp\server.py

In Claude Desktop, add this to %APPDATA%\Claude\claude_desktop_config.json and restart the app:

{
  "mcpServers": {
    "office": {
      "command": "C:\\path\\to\\office-mcp\\.venv\\Scripts\\python.exe",
      "args": ["C:\\path\\to\\office-mcp\\server.py"]
    }
  }
}

That is it. You do not need to start Office or anything else by hand. Ask Claude to make a presentation and it will open PowerPoint for you.

Documentation

Good to know

Windows only. Office automation runs on COM, which does not exist anywhere else.

It uses the Office you already have. The server attaches to a running app rather than opening a second copy, so your open documents stay as they are.

Nothing leaves your machine. The server talks to Office locally over COM.

If something behaves oddly, the gotchas page is worth a look first. Office has a number of quirks that report success while quietly doing the wrong thing, and most of them are documented there.

Licence

MIT