Supported file type and sizes

Supported file formats

You can upload any type of file to Zefort.  The most common file types can also be viewed directly in the Zefort user interface, and are supported for AI processing.

File formats supported for viewing and AI processing

Zefort fully supports the most common modern and legacy document formats.


File type Extension Content type
PDF document .pdf application/pdf
Word document .docx application/vnd.openxmlformats-officedocument.wordprocessingml.document
Excel spreadsheet .xlsx application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Powerpoint presentation .pptx application/vnd.openxmlformats-officedocument.presentationml.presentation
Plain text .txt text/plain
Rich Text Format .rtf text/rtf
TIFF .tif text/tiff
Legacy Microsoft Word document .doc application/msword
Legacy Microsoft Excel spreadsheet .xls application/
Legacy Microsoft Powerpoint presentation .ppt application/

File formats supported for viewing only

The most common image formats can be viewed in the Zefort user interface.

File type Extension Content type
JPEG images .jpg image/jpeg
PNG images .png image/png
WebP images .webp image/webp
GIF images .gif image/gif

File size limits

The maximum file size that can be uploaded via the user interface and API is 100 megabytes.