Anthropic just made the skills behind Claude's Word, Excel, PowerPoint and PDF files fully open source.
These are the exact skills Claude uses to:
- Write and edit Word documents
- Build Excel sheets with real formulas
- Make PowerPoint decks
- Read, fill and create PDFs
Until last week, you could read them but not reuse them. Now you can drop them into your own agent, your own app or your own product, even commercially.
Every agent that has to touch a real office file just got a free head start.