Excel MCP Server

MIT License
939
42
  • Linux
  • Apple

local-only server

The server can only run on the client’s local machine because it depends on local resources.

Excel MCP Server

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

Features

  • Read text values from MS Excel file
  • Write text values to MS Excel file
  • Read formulas from MS Excel file
  • Write formulas to MS Excel file
  • Capture screen image from MS Excel file (Windows only)

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

read_sheet_names

List all sheet names in an Excel file.

Arguments:

  • fileAbsolutePath
    • Absolute path to the Excel file

read_sheet_data

Read data 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

read_sheet_formula

Read formulas 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

read_sheet_image

[Windows only] Read data as an image from 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

write_sheet_data

Write data to the Excel sheet.

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").
  • data
    • Data to write to the Excel sheet

write_sheet_formula

Write formulas to the Excel sheet.

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").
  • formulas
    • Formulas to write to the Excel sheet (e.g., "=A1+B1")

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

-
security - not tested
A
license - permissive license
-
quality - not tested

A Model Context Protocol server that enables AI assistants to read from and write to Microsoft Excel files, supporting formats like xlsx, xlsm, xltx, and xltm.

  1. Features
    1. Requirements
      1. Supported file formats
        1. Installation
          1. Installing via NPM
          2. Installing via Smithery
          3. read_sheet_names
          4. read_sheet_data
          5. read_sheet_formula
          6. read_sheet_image
          7. write_sheet_data
          8. write_sheet_formula
          9. EXCEL_MCP_PAGING_CELLS_LIMIT
        2. License