MIT-licensed, COM-free .NET libraries for creating, reading, editing, converting, rendering, and extracting Office, PDF, email, OneNote, and text formats.
Html2OpenXml is a small .Net library that convert simple or advanced HTML to plain OpenXml components. This program has started in 2009, initially to convert user's comments into templated Word.
Let AI agents edit Word documents without breaking them: fill in forms, update tables, restyle, write reports, and redline with tracked changes and comments.
Pure-Python reader/writer for VBA macros embedded in Excel / PowerPoint / Word files. Zero dependencies, deterministic round-trip, safe on protected and signed projects.
Convert HTML to DOCX/PDF and edit DOCX/XLSX/PPTX from .NET. Pure managed - no native binaries, no browser, no LibreOffice. Runs on Linux, works offline.