workflowstacks
mcp-server

mcp-server-excel: Automate Excel Tasks with 23 AI‑Powered Tools

Leverage 23 ready‑made commands and 214 operations to script Excel via COM API, letting founders streamline reporting, data prep, and dashboards without writing VBA.

From the repo · “Excel MCP Server & CLI - 23 tools, 214 operations for AI-powered Excel automation via COM API”

831 stars+11★ this week99 forksC#Guide quality 9/10 · reviewed Oct 21Updated 10/22/2026100% free · open source
What it does

mcp-server-excel automates Excel tasks using AI-powered tools via the COM API, providing 23 tools and 214 operations for efficient data management

When to use it
  • •When you need to automate repetitive Excel tasks to save time
  • •When you want to leverage AI to analyze and process large datasets in Excel
  • •When you require custom Excel integrations with other applications or services
Ready-to-paste prompt
mcp excel tools/info --name='Create Pivot Table' --input='example.xlsx' --output='pivot_table.xlsx'
Heads up: Ensure you have the correct version of the .NET runtime installed, as specified in the README, to avoid compatibility issues when building and running the project
Saves to your device
Use with Claude
New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

🛠️ Technical setup

Expect 20–40 minutes in a terminal — or let your AI agent drive it.

Try it instantly — no install
Claude Code
mkdir -p ~/.claude/skills/mcp-server-excel && curl -fsSL https://workflowstacks.com/api/skills/mcp-server-excel/claude-skill -o ~/.claude/skills/mcp-server-excel/SKILL.md
Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)
claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

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How mcp-server-excel: Automate Excel Tasks with 23 AI‑Powered Tools works
Codeflow
Free to inspect

Mcp-server-excel: Automate Excel Tasks with 23 AI‑Powered Tools is a very large C# project (~132k lines across 616 code files, plus 650 test files). It is a full software project: use it through its install path rather than reading it end to end. Last commit this month, MIT license, has a test suite.

Size
Very large codebase
~132k lines · 616 code files · days to read — use, don't read
Setup
Developer setup
A real software project. Use it via its install path; don't expect to read it all.
Runs on
Node.js
No API keys detected
C# 88%PowerShell 5%Python 4%JavaScript 1%HTML 1%
Where to start reading
  1. 1
    README.md
    Start here — what it does and how to install it
  2. 2
    AGENTS.md
    The instructions the AI actually follows
  3. 3
    package.json
    Dependencies and the commands it exposes
  4. 4
    src/ExcelMcp.CLI/README.md
    Inside src/ — the main logic begins here
  5. 5
    examples/README.md
    A worked example — copy this to get going
What's in each folder
src/Core code — the actual logic494 files
skills/Prompts, skills & agent definitions4 files
docs/Documentation72 files
samples/Examples you can copy18 files
examples/Examples you can copy7 files
videos/Folder139 files
gh-pages/Folder93 files
scripts/Helper scripts63 files
READMEHas testsDocumentedCI checksExamples includedMIT licenseUpdated this month
Quick Actions
Details
Creator
sbroenne
Language
C#
Category
mcp-server
Published
10/19/2025

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