Model Context Protocol moderate risk

Excel

An MCP server for manipulating Excel files programmatically, enabling AI agents to create, read, and modify workbooks without needing Excel installed.

Connections & Capabilities

Connects To

GitHubTwitter

Capabilities

readwrite

Quickstart

Install

uvx excel-mcp-server stdio

Config

{
   "mcpServers": {
      "excel": {
         "command": "uvx",
         "args": ["excel-mcp-server", "stdio"]
      }
   }
}

Exposed MCP Tools (6)

moderate

create_workbook

Creates a new Excel workbook.

Creates a new file, but doesn't overwrite existing ones without explicit instruction.

safe

read_worksheet

Reads data from a specified worksheet in the Excel file.

Read-only operation, no modification of data.

moderate

update_cell

Updates the value of a specific cell in a worksheet.

Modifies data within the Excel file.

high

delete_worksheet

Deletes a worksheet from the Excel workbook.

Destructive operation that removes a worksheet.

moderate

create_table

Creates a new table within a worksheet.

Adds a new table, potentially modifying the worksheet structure.

moderate

create_chart

Generates a chart based on data in the Excel file.

Adds a chart to the Excel file, modifying its structure.

Safety Assessment

The Excel MCP server is relatively safe when used locally with the stdio transport. However, when exposed via SSE or Streamable HTTP, it becomes more risky due to the lack of authentication and potential for unauthorized file access. Ensure proper environment configuration and restrict access to minimize risks.

No direct internet exposure when using stdio transport.
Data validation features help maintain data integrity.
File access is controlled through file paths.
Supports multiple transport methods, allowing for flexibility in deployment.

Write operations can modify or overwrite existing Excel files.
Lack of built-in authentication mechanisms.
Potential for data exfiltration if the server is compromised.
The server relies on the file system for storage, which can be a point of vulnerability.