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Microsoft Office apps for Mac quit unexpectedly

PAUL MAURIN 0 Reputation points
2025-12-20T04:23:38.2133333+00:00

I just purchased the Microsoft 365 Premium Upgrade for Mac (using Sequoia 15.7.2) and downloaded it. Now the desktop apps will NOT open; the error message states: "Microsoft Outlook quit unexpectedly." Same error for Word, Excel, Powerpoint, and OneNote. Please help.

Microsoft 365 and Office | Excel | For home | MacOS
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Answer recommended by moderator
  1. Gunasekar N 60,795 Reputation points Independent Advisor
    2025-12-20T06:23:06.3033333+00:00

    Hello, thank you for reaching out to Microsoft Q&A.

    1. Quit all Office applications.
    2. Open Finder > Applications.
    3. Use Command button +click to select all of the Microsoft 365 for Mac applications.
    4. Ctrl+click the application you selected and click Move to Trash.

    Once done, in the Finder, click GO in the menu bar and go to folder - ~/Library/Containers/

    Delete the folders starting with,

    com.microsoft.Word

    com.microsoft.Excel

    com.microsoft.Powerpoint

    com.microsoft.Outlook

    com.microsoft.OneNote

    Go back to the Library folder and open Group Containers. if present, and Move to Trash.

    UBF8T346G9.ms

    UBF8T346G9.Office

    Once done, sign in with your Microsoft account here to reinstall the Office apps.

    https://account.microsoft.com/services

    Let me know if you still need more help.

    2 people found this answer helpful.

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