Microsoft Office Excel - Couldnt Open the Workbook - The workbook cannot be opened.

Today while working many are facing error prompt Couldn't Open the Workbook - The workbook cannot be opened.

Couldnt Open the Workbook - The workbook cannot be opened.PNG
Couldnt Open the Workbook - The workbook cannot be opened.PNG

It seems there is an outage of Office 365, people are unable to open Excel, Powerpoint, or Word documents via a Web browser or on local systems. There are many people complaining about it on Twitter as well.
Microsoft 365 Service health status There are currently no known issues preventing you from signing in to your Office 365 service health dashboard.

No Alerts pf outage on Office 365 status page!

Update: If you work on Office 365 application like MS Excel on your computer and try to access the One Drive files they are working fine.


  • Facing the same. Microsoft tweeted the below,

    Weโ€™ve determined that a recent change may have contributed to the cause of impact. Weโ€™re reverting the change and are monitoring the service health status. Refer to OO225507 in the admin center for additional details.

    Our monitoring has shown slight recovery to some users following the revert, however we are looking into additional mitigation options to speed up recovery for all users. Please refer to OO225507 in the admin center for further details.
    30 Oct 2020 05:10:29 GMT
  • Further comments disabled!
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