* [Flyfish Viewer v2.4.0](https://github.com/flyfish-dev/file-viewer) – Offline-first universal file viewer for 190+ formats, built with a pure TypeScript core and polished Vue, React, Svelte, jQuery, and Web Components.

* [GenOffice v0.8.0](https://github.com/genspark-ai/genoffice) – AI-native office suite for macOS and Windows with AI-first editing across word processing, spreadsheets, presentations, and PDF.

* [docxgo v2.14.0](https://github.com/mmonterroca/docxgo) – Production-grade Go library for creating and modifying Microsoft Word .docx (OOXML) files with clean architecture and builder API.

* [office-open-xml-viewer v0.82.0](https://github.com/yukiyokotani/office-open-xml-viewer) – A browser-based Office Open XML viewer that parses documents in Rust/WebAssembly and renders pages, sheets, and slides to HTML Canvas via Canvas 2D.

* [CodeSucker v0.5.0](https://github.com/fanbuz/codesucker) – Desktop app that extracts and cleans annotated code locally, generates paginated software copyright documents, and verifies results before exporting.

* [Gander v1.13](https://github.com/mokshablr/gander) – Offline, zero-permission Android file viewer that renders PDFs, Office docs, media, and Markdown locally in a single app.