Office Open XML Viewer: AI-generated browser-based document renderer using Rust/WASM and Canvas 2D
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maxloh
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Summary
A browser-based viewer for Office Open XML documents (DOCX, XLSX, PPTX) that renders to an HTML Canvas element. The parsers are written in Rust and compiled to WebAssembly, while the renderers use the Canvas 2D API. Notably, the entire codebase — including Rust parsers, TypeScript renderers, tests, and tooling — was generated entirely by Claude (Anthropic's AI assistant) through iterative prompting, with no human-written application code in the repository.
Key quotes
· 5 pulledThis entire codebase — Rust parsers, TypeScript renderers, tests, and tooling — was implemented by Claude (Anthropic's AI assistant) through iterative prompting.
No human-written application code exists in this repository.
A browser-based viewer for Office Open XML documents that renders to an HTML Canvas element.
The parsers are written in Rust and compiled to WebAssembly; the renderers use the Canvas 2D API.
Each format also exposes a headless engine (DocxDocument / XlsxWorkbook / PptxPresentation) that renders into any caller-supplied canvas.
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