A browser-based viewer for Office Open XML documents

A browser-based library using Rust and WebAssembly enables rendering of Microsoft Office documents (DOCX, XLSX, PPTX) directly in web browsers with Canvas 2D API, supporting features like paginated layouts, tables, charts, images, and formulas across all three formats. The implementation follows ECMA-376/ISO 29500 specifications and provides both built-in viewers and document APIs for custom applications. Recent updates include improved TIFF image support, faster loading for large files, and enhanced layout rendering.