---
name: edit-xlsx
description: Use EditDocx to edit Excel XLSX spreadsheets in the browser without uploading files to a server.
---

# Edit XLSX with EditDocx

EditDocx (https://editdocx.net/editor/) opens `.xlsx` files in the browser alongside Word documents. Spreadsheet processing runs locally on the user's device.

## When to use

- User needs to edit a budget or table without Excel installed
- User wants spreadsheet edits to stay on-device (no cloud upload)
- User already uses EditDocx for DOCX and needs the same tab for XLSX

## Key pages

- Workspace: https://editdocx.net/editor/
- Features: https://editdocx.net/features
- FAQ: https://editdocx.net/faq

## Limitations

- Requires a modern browser with JavaScript enabled
- Client-side only; agents cannot upload spreadsheets via a server API
- Recent files are stored in IndexedDB (max 10 files, 20MB each)

## API discovery

- API catalog: `/.well-known/api-catalog`
- MCP tools: `/.well-known/mcp/server-card.json`