p10node/office-engine: Browser-based DOCX, XLSX, and PPTX editor

Office-engine is a browser-based library for viewing and editing DOCX, XLSX, and PPTX files directly in the client. It features progressive loading through lazy ZIPs and HTTP range requests, virtualized views, real-time collaboration, and a fast save mechanism that preserves original bytes. Developers can embed the viewer easily via a React component, web component, or vanilla JavaScript. Open article →