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Excel MCP Server

Excel MCP Server

Public
negokaz/excel-mcp-server

Model Context Protocol server enabling read/write access to Excel files, supporting text, formulas, sheet creation, and Windows-only live editing and screen capture for xlsx, xlsm, xltx, and xltm formats.

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0 tools
May 30, 2025
Updated Jun 4, 2025

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Excel MCP Server

A Model Context Protocol (MCP) server that reads and writes MS Excel data.

Features

  • Read/Write text values
  • Read/Write formulas
  • Create new sheets

🪟Windows only:

  • Live editing
  • Capture screen image from a sheet

For more details, see the tools section.

Requirements

  • Node.js 20.x or later

Supported file formats

  • xlsx (Excel book)
  • xlsm (Excel macro-enabled book)
  • xltx (Excel template)
  • xltm (Excel macro-enabled template)

Installation

Installing via NPM

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" } } } }

Installing via Smithery

To install Excel MCP Server for Claude Desktop automatically via Smithery:

npx -y @smithery/cli install @negokaz/excel-mcp-server --client claude

Tools

excel_describe_sheets

List all sheet information of specified Excel file.

Arguments:

  • fileAbsolutePath
    • Absolute path to the Excel file

excel_read_sheet

Read values from Excel sheet with pagination.

Arguments:

  • fileAbsolutePath
    • Absolute path to the Excel file
  • sheetName
    • Sheet name in the Excel file
  • range
    • Range of cells to read in the Excel sheet (e.g., "A1:C10"). [default: first paging range]
  • knownPagingRanges
    • List of already read paging ranges
  • showFormula
    • Show formula instead of value

excel_screen_capture

[Windows only] Take a screenshot of the Excel sheet with pagination.

Arguments:

  • fileAbsolutePath
    • Absolute path to the Excel file
  • sheetName
    • Sheet name in the Excel file
  • range
    • Range of cells to read in the Excel sheet (e.g., "A1:C10"). [default: first paging range]
  • knownPagingRanges
    • List of already read paging ranges

excel_write_to_sheet

Write values to the Excel sheet.

Arguments:

  • fileAbsolutePath
    • Absolute path to the Excel file
  • sheetName
    • Sheet name in the Excel file
  • newSheet
    • Create a new sheet if true, otherwise write to the existing sheet
  • range
    • Range of cells to read in the Excel sheet (e.g., "A1:C10").
  • values
    • Values to write to the Excel sheet. If the value is a formula, it should start with "="

excel_create_table

Create a table in the Excel sheet

Arguments:

  • fileAbsolutePath
    • Absolute path to the Excel file
  • sheetName
    • Sheet name where the table is created
  • range
    • Range to be a table (e.g., "A1:C10")
  • tableName
    • Table name to be created

excel_copy_sheet

Copy existing sheet to a new sheet

Arguments:

  • fileAbsolutePath
    • Absolute path to the Excel file
  • srcSheetName
    • Source sheet name in the Excel file
  • dstSheetName
    • Sheet name to be copied

Configuration

You can change the MCP Server behaviors by the following environment variables:

EXCEL_MCP_PAGING_CELLS_LIMIT

The maximum number of cells to read in a single paging operation.
[default: 4000]

License

Copyright (c) 2025 Kazuki Negoro

excel-mcp-server is released under the MIT License

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