xlsx-tools-mcp

io.github.ruriazz/xlsx-tools-mcp · v0.3.2

MCP server for accurate, structure-preserving read/write access to Excel (.xlsx) files

Source code Set it up

Connect Runs on your machine

Terminal

claude mcp add xlsx-tools-mcp -e XLSX_MCP_FILES=<XLSX_MCP_FILES> -e XLSX_MCP_RECALC_TIMEOUT=<XLSX_MCP_RECALC_TIMEOUT> -e XLSX_MCP_LOCK_TIMEOUT=<XLSX_MCP_LOCK_TIMEOUT> -e XLSX_MCP_ALLOWED_DIRS=<XLSX_MCP_ALLOWED_DIRS> -e XLSX_MCP_AUTO_BACKUP=<XLSX_MCP_AUTO_BACKUP> -e XLSX_MCP_BACKUP_DIR=<XLSX_MCP_BACKUP_DIR> -- uvx xlsx-tools-mcp==0.3.2

claude_desktop_config.json

{
  "mcpServers": {
    "xlsx-tools-mcp": {
      "command": "uvx",
      "args": [
        "xlsx-tools-mcp==0.3.2"
      ],
      "env": {
        "XLSX_MCP_FILES": "<XLSX_MCP_FILES>",
        "XLSX_MCP_RECALC_TIMEOUT": "<XLSX_MCP_RECALC_TIMEOUT>",
        "XLSX_MCP_LOCK_TIMEOUT": "<XLSX_MCP_LOCK_TIMEOUT>",
        "XLSX_MCP_ALLOWED_DIRS": "<XLSX_MCP_ALLOWED_DIRS>",
        "XLSX_MCP_AUTO_BACKUP": "<XLSX_MCP_AUTO_BACKUP>",
        "XLSX_MCP_BACKUP_DIR": "<XLSX_MCP_BACKUP_DIR>"
      }
    }
  }
}

~/.cursor/mcp.json

{
  "mcpServers": {
    "xlsx-tools-mcp": {
      "command": "uvx",
      "args": [
        "xlsx-tools-mcp==0.3.2"
      ],
      "env": {
        "XLSX_MCP_FILES": "<XLSX_MCP_FILES>",
        "XLSX_MCP_RECALC_TIMEOUT": "<XLSX_MCP_RECALC_TIMEOUT>",
        "XLSX_MCP_LOCK_TIMEOUT": "<XLSX_MCP_LOCK_TIMEOUT>",
        "XLSX_MCP_ALLOWED_DIRS": "<XLSX_MCP_ALLOWED_DIRS>",
        "XLSX_MCP_AUTO_BACKUP": "<XLSX_MCP_AUTO_BACKUP>",
        "XLSX_MCP_BACKUP_DIR": "<XLSX_MCP_BACKUP_DIR>"
      }
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "xlsx-tools-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "xlsx-tools-mcp==0.3.2"
      ],
      "env": {
        "XLSX_MCP_FILES": "<XLSX_MCP_FILES>",
        "XLSX_MCP_RECALC_TIMEOUT": "<XLSX_MCP_RECALC_TIMEOUT>",
        "XLSX_MCP_LOCK_TIMEOUT": "<XLSX_MCP_LOCK_TIMEOUT>",
        "XLSX_MCP_ALLOWED_DIRS": "<XLSX_MCP_ALLOWED_DIRS>",
        "XLSX_MCP_AUTO_BACKUP": "<XLSX_MCP_AUTO_BACKUP>",
        "XLSX_MCP_BACKUP_DIR": "<XLSX_MCP_BACKUP_DIR>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

Name	Description
`XLSX_MCP_FILES` Optional	Comma or semicolon-separated alias=path pairs of workbooks to preload at startup
`XLSX_MCP_RECALC_TIMEOUT` Optional	Timeout in seconds for the LibreOffice recalculation pass (default 60)
`XLSX_MCP_LOCK_TIMEOUT` Optional	Timeout in seconds to acquire the per-file lock (default 10)
`XLSX_MCP_ALLOWED_DIRS` Optional	Comma or semicolon-separated list of allowed directories to restrict file access (supports case-insensitivity on Windows)
`XLSX_MCP_AUTO_BACKUP` Optional	Enable automatic backup creation before workbook mutations (default true)
`XLSX_MCP_BACKUP_DIR` Optional	Optional custom directory to store backup files instead of beside the target file

Details

Package	`[email protected]` (PYPI, stdio)
First published	17 Oct 2026
Last updated	17 Oct 2026
Registry name	`io.github.ruriazz/xlsx-tools-mcp`

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Local install

Installed and run on your own machine, so there is no public endpoint to check.

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