@p10node/office-engine

About

A browser engine and React component for viewing and editing DOCX, XLSX and PPTX files without a server. It loads files progressively using lazy ZIP reading, HTTP Range requests and a streaming parser in a Web Worker, and renders only visible pages, cells and slides, so large files open quickly. Edits are saved back to the original format, and the README lists real-time collaboration and a 134-function formula set.