"Unknown error trying to lock file." when opening file in Excel from SharePoint

Anonymous
2023-03-06T19:20:06+00:00

One of my users with Win 10 pro (upto date) is having trouble opening files (xlsx and xlsm) from SharePoint in Excel, they are getting the error "Unknown error trying to lock file." They are running Excel 2016, fully up to date. They were not having an issue Friday.

Tried the same files on SharePoint on other computers and did not get the same error. I tried via another user account on the computer that is having trouble and got the same error. I tried an Office repair, quick and full, which did not help. Teams and Outlook are on this computer and are having no trouble. I was also able to open word files on SharePoint with no issue.

I'm a little stymied any help would be greatly appreciated.

Microsoft 365 and Office | Excel | For business | Windows

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Anonymous
2023-03-30T03:11:11+00:00

After run update as picture the issue is resolved,

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Anonymous
2023-03-29T02:50:55+00:00

Hi All,

Updated, SP525140 was resolved, please check if you still have the issue on your side.

Thanks for your understanding and cooperation! Have a good day.

Sincerely,

Sean | Microsoft Community Moderator

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  1. Anonymous
    2023-04-05T00:49:27+00:00

    Hi starbuck3000,

    We do have the same user experienced that the issue reappeared after new updates.

    Hope MSFT will provide a permanent solution for this.

    Thanks,

    Mersan

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  2. Anonymous
    2023-04-04T14:16:22+00:00

    Hi Lucia, thanks for sharing this input, I can confirm members of my team are also experiencing the same issue again today!

    It was resolved after a recent update to our machines, but like you say, it has reappeared today following no update or doing anything differently.

    Here's hoping it can be addressed in due course.

    Best wishes, Damien

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