I’d like to request Microsoft Office format compatibility for Proton Docs and Sheets.

At the moment, I’ve migrated most of my files to Proton Drive, but I still need to keep all my .docx, .xlsx, and .pptx files in Google Drive because Proton does not yet support them natively. Since I work across multiple systems, I rely on these universal file formats for seamless collaboration and interoperability.

It would be extremely valuable to have:
- A compatibility mode similar to Google Docs/Sheets for handling Microsoft formats
- The ability to open and edit .docx, .xlsx, and .pptx files directly in Proton Drive apps
- No forced conversion into Proton-specific formats when editing these files

This would significantly improve usability and make Proton Drive a more complete replacement for other ecosystems.

Thanks for considering this feature request!