A file is any content you attach. Supported formats:
- Documents: PDF, DOC, XLS, PPT
- Images: JPG, PNG, GIF, WebP, AVIF
- Video: MP4, MOV, AVI
- Audio: MP3, WAV
- Archives: ZIP, RAR, 7Z
The maximum size is 4 GB per file. Images and PDFs open in a preview without downloading. Files are stored indefinitely.