Edit DOCX/XLSX/PPTX in your browser — client-side, no server, works offline (OnlyOffice + WebAssembly)

give your AI agent a spreadsheet it can actually think in: deterministic Excel-compatible math + structured memory (blocks), real .xlsx out. Open source, self-hostable.

MCP server providing tools to create Ms Office documents like presentations, emails, spreadsheets and word docs (pptx, docx, eml, xlsx)