Open-source Rust/WASM viewer renders DOCX, XLSX, PPTX in the browser

A browser-based viewer for Office Open XML documents

A new open-source JavaScript library, @silurus/ooxml, renders Office Open XML documents directly in the browser using Rust compiled to WebAssembly and the Canvas 2D API. It supports DOCX, XLSX, and PPTX with features like paginated layouts, complex tables, charts, and CJK typography, all without server-side conversion or iframes. The project aims for specification-informed rendering and offers document APIs for custom integrations.