xlsx-tools-mcp MCP Server

What the code does

We read the source, 7 d ago · rules ccca72095570

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

            proc = subprocess.run(cmd, capture_output=True, timeout=timeout, **extra_kwargs)

            os.path.join(os.environ.get("ProgramFiles", r"C:\Program Files"), "LibreOffice", "program", "soffice.exe"),

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Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

claude mcp add xlsx-tools-mcp -- uvx xlsx-tools-mcp

{
  "mcpServers": {
    "xlsx-tools-mcp": {
      "args": [
        "xlsx-tools-mcp"
      ],
      "command": "uvx"
    }
  }
}

[mcp_servers.xlsx-tools-mcp]
command = "uvx"
args = ["xlsx-tools-mcp"]

{
  "mcpServers": {
    "xlsx-tools-mcp": {
      "args": [
        "xlsx-tools-mcp"
      ],
      "command": "uvx"
    }
  }
}

{
  "mcpServers": {
    "xlsx-tools-mcp": {
      "args": [
        "xlsx-tools-mcp"
      ],
      "command": "uvx"
    }
  }
}

This one needs environment variables set before it will start: XLSX_MCP_FILES (Comma or semicolon-separated alias=path pairs of workbooks to preload at startup), XLSX_MCP_RECALC_TIMEOUT (Timeout in seconds for the LibreOffice recalculation pass (default 60)), XLSX_MCP_LOCK_TIMEOUT (Timeout in seconds to acquire the per-file lock (default 10)), XLSX_MCP_ALLOWED_DIRS (Comma or semicolon-separated list of allowed directories to restrict file access (supports case-insensitivity on Windows)), XLSX_MCP_AUTO_BACKUP (Enable automatic backup creation before workbook mutations (default true)), XLSX_MCP_BACKUP_DIR (Optional custom directory to store backup files instead of beside the target file). The author declared them in the registry entry; get the values from the project itself.