npm install
npm run build   # tsc -> dist/

npm start       # node dist/cli.js
# or during development:
npm run dev     # ts-node src/cli.ts

{
  "mcpServers": {
    "excel": {
      "command": "node",
      "args": ["<path-to-repo>/dist/cli.js"]
    }
  }
}

src/
  cli.ts           entry point (bin: excel-mcp)
  server.ts        MCP server wiring
  data.ts          cell/range data operations
  formatting.ts    styles and formats
  calculations.ts  formulas
  chart.ts         charts
  pivot.ts         pivot tables
  cellUtils.ts     helpers
excel_files/       sample workbook for local testing