Message "The file type is not supported"
Issue
You launched a file upload, and the message 'The file type is not supported' is displayed.
Fix
This message means the extension for the file you are trying to download is not authorized in Keepeek. The file available at this link will provide the file type list supported by Keepeek.
If you still wish to stock the file in Keepeek, you can do so by putting it in a zip file, which is an authorized format.