Co-authoring for Online Web Edit is not working

Original Question or Issue:

We were able to live collaborate in Word documents, but the Excel live collaboration is not working.

Environment:

• Product - FileCloud Server
• Version - Any
• Platform - Any

Steps to Reproduce:

• Edit an office file that is having unsupported office extension

Error or Log Message:

Defect or Enhancement Number:

Cause:

The user is trying to edit excel files with unsupported extension (xls)

Resolution or Workaround:

Only .docx, .xslx, and .pptx documents can be coauthored. 

Notes:

https://www.filecloud.com/supportdocs/fcdoc/latest/server/filecloud-administrator-guide/filecloud-site-setup/online-web-editing/coauthoring-office-documents-using-web-edit