by negokaz
Unlock powerful Excel automation: read/write Excel files, create sheets, and automate workflows with seamless integratio
Reads and writes Excel files directly, supporting text, formulas, and sheet manipulation across XLSX, XLSM, XLTX, and XLTM formats. Windows users get additional live editing capabilities.
Excel is a community-built MCP server published by negokaz that provides AI assistants with tools and capabilities via the Model Context Protocol. Unlock powerful Excel automation: read/write Excel files, create sheets, and automate workflows with seamless integratio It is categorized under productivity, analytics data. This server exposes 6 tools that AI clients can invoke during conversations and coding sessions.
You can install Excel in your AI client of choice. Use the install panel on this page to get one-click setup for Cursor, Claude Desktop, VS Code, and other MCP-compatible clients. This server runs locally on your machine via the stdio transport.
MIT
Excel is released under the MIT license. This is a permissive open-source license, meaning you can freely use, modify, and distribute the software.
Add new capabilities to Claude beyond text generation
Example
Access external data sources, execute code, interact with tools and services
Transform Claude from chatbot to action-taking agent
Provide Claude with access to relevant context and data
Example
Load project documentation, access knowledge bases, query databases
Get more accurate, context-aware responses
Automate multi-step workflows combining AI and external tools
Example
Research → Summarize → Create document → Send notification
Complete complex tasks end-to-end without manual steps
Share your MCP server with the developer community
Excel is among the better-indexed MCP projects we tried; the explainx.ai summary tracks the official description.
Useful MCP listing: Excel is the kind of server we cite when onboarding engineers to host + tool permissions.
Strong directory entry: Excel surfaces stars and publisher context so we could sanity-check maintenance before adopting.
We wired Excel into a staging workspace; the listing’s GitHub and npm pointers saved time versus hunting across READMEs.
I recommend Excel for teams standardizing on MCP; the explainx.ai page compares cleanly with sibling servers.
Excel is a well-scoped MCP server in the explainx.ai directory — install snippets and categories matched our Claude Code setup.
Excel is a well-scoped MCP server in the explainx.ai directory — install snippets and categories matched our Claude Code setup.
According to our notes, Excel benefits from clear Model Context Protocol framing — fewer ambiguous “AI plugin” claims.
Strong directory entry: Excel surfaces stars and publisher context so we could sanity-check maintenance before adopting.
Useful MCP listing: Excel is the kind of server we cite when onboarding engineers to host + tool permissions.
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A Model Context Protocol (MCP) server that reads and writes MS Excel data.
🪟Windows only:
For more details, see the tools section.
excel-mcp-server is automatically installed by adding the following configuration to the MCP servers configuration.
For Windows:
{
"mcpServers": {
"excel": {
"command": "cmd",
"args": ["/c", "npx", "--yes", "@negokaz/excel-mcp-server"],
"env": {
"EXCEL_MCP_PAGING_CELLS_LIMIT": "4000"
}
}
}
}
For other platforms:
{
"mcpServers": {
"excel": {
"command": "npx",
"args": ["--yes", "@negokaz/excel-mcp-server"],
"env": {
"EXCEL_MCP_PAGING_CELLS_LIMIT": "4000"
}
}
}
}
To install Excel MCP Server for Claude Desktop automatically via Smithery:
npx -y @smithery/cli install @negokaz/excel-mcp-server --client claude
excel_describe_sheetsList all sheet information of specified Excel file.
Arguments:
fileAbsolutePath
excel_read_sheetRead values from Excel sheet with pagination.
Arguments:
fileAbsolutePath
sheetName
range
showFormula
showStyle
excel_screen_capture[Windows only] Take a screenshot of the Excel sheet with pagination.
Arguments:
fileAbsolutePath
sheetName
range
excel_write_to_sheetWrite values to the Excel sheet.
Arguments:
fileAbsolutePath
sheetName
newSheet
range
values
excel_create_tableCreate a table in the Excel sheet
Arguments:
fileAbsolutePath
sheetName
range
tableName
excel_copy_sheetCopy existing sheet to a new sheet
Arguments:
fileAbsolutePath
srcSheetName
dstSheetName
excel_format_rangeFormat cells in the Excel sheet with style information
Arguments:
fileAbsolutePath
sheetName
range
styles
border: Array of border styles (type, color, style)font: Font styling (bold, italic, underline, size, strike, color, vertAlign)fill: Fill/background styling (type, pattern, color, shading)numFmt: Custom number format stringdecimalPlaces: Number of decimal places (0-30)You can change the MCP Server behaviors by the following environment variables:
EXCEL_MCP_PAGING_CELLS_LIMITThe maximum number of cells to read in a single paging operation.
[default: 4000]
Copyright (c) 2025 Kazuki Negoro
excel-mcp-server is released under the MIT License
Prerequisites
Time Estimate
15-60 minutes depending on server complexity
Steps
Troubleshooting
✓ Do
✗ Don't
💡 Pro Tips
Architecture
Model Context Protocol standardizes how AI hosts (Claude, Cursor) communicate with external tools and data sources through server implementations.
Protocols
Compatibility
✓ Use when
Use when you need Claude to access external data, execute actions, or integrate with tools. Best for extending AI capabilities beyond conversation.
✗ Avoid when
Avoid when native integrations exist (use official APIs directly), for real-time critical systems, or when security/compliance requires zero external dependencies.