It seems the file you are trying to upload is still in the `application/vnd.ms-excel` format. Please convert your file to CSV format and try uploading it again.

[LDD19]

Bug report

Describe the bug

Upload is only accepting 'text/csv' as MIME type.

To Reproduce

Upload a CSV file in chat.

Screenshots

System information

• OS: Windows 10
• Browser: Firefox

Additional context

Added PR here: #47