Microsoft Office Online Web Editing

You can integrate FileCloud with Microsoft Office Online to allow your users to edit documents in a browser. FileCloud uses the WOPI protocol for this integration.

Administrators can configure Web Edit in the following ways:

FileCloud can integrate with your Microsoft-hosted Office online server to edit office documents.	Microsoft Office Online for Cloud Web Editing
FileCloud can integrate with your on-premises Office online server installation to edit office documents.	Microsoft Office Online Server Web Editing

Troubleshooting Office Web Editing

This issue can happen if locking is disabled.

To enable locking:

In the FileCloud admin portal's left navigation bar, scroll down and click Settings. Then, on the Settings navigation page, click Misc .
By default, General settings are opened.
Scroll down to the Disable Locking setting, and disable it.
Click Save.