Removed ZIP read/write complexity. All document formats now extract
text and upload as plaintext — the AI extracts text from files anyway,
no need to preserve formatting in a file the user never gets back.
Added support for: DOC, XLS (old binary), ODT, ODS, ODP (OpenDocument),
PPTX (PowerPoint), RTF.
Extraction methods:
- PDF: content stream operators (Tj, TJ)
- DOCX/XLSX/PPTX/ODT/ODS/ODP: ZIP XML text extraction with DEFLATE
- DOC/XLS: UTF-16LE and ASCII text run extraction from binary
- RTF: strip formatting commands, keep text
https://claude.ai/code/session_01SWSwDfMVij53bCTNSCLMwn
Claude
9be389f53a