How to fix this error and how can i start back my Microsoft Excel app?

Kshitij Shirodkar 0 Reputation points
2026-09-16T05:19:26.7366667+00:00

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This is the Screen shot of the error , please provide a solution to fix this?

Microsoft 365 and Office | Excel | For business | Other
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  1. Ana Le 2,600 Reputation points Independent Advisor
    2026-09-16T05:28:59.35+00:00

    Hello,

    The message in your screenshot indicates that Excel has encountered an error, but it does not identify the exact cause.

    Could you please confirm:

    • Does this happen when opening Excel itself, or only when opening a particular workbook?
    • Have you selected “Repair Now”? If so, what happened afterward?
    • Can you open Word or PowerPoint normally?

    As the forum’s AI recommended, please first try opening Excel in Safe Mode:

    1. Close Excel.
    2. Press Windows + R.
    3. Type excel /safe and press Enter. Include a space before /safe.

    Please let me know whether Excel opens and allows you to create a blank workbook in this mode. This helps narrow down whether add-ins or startup settings may be involved. See Open Office apps in Safe Mode.

    If the same error appears in Safe Mode and you have not already tried Online Repair, save your work and close all Office apps. Open Windows Settings > Apps, select your Microsoft 365 or Office installation, and choose Modify > Online Repair > Repair. An internet connection is required. See Repair an Office application.

    If the issue continues, please share your Windows version and Office version, along with the results above. If another Office app opens, you can find the Office product name and version under File > Account.

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  2. AI answer

    2026-09-16T05:19:48.03+00:00

    Try these steps in order:

    1. Update Office
      • Open any Office app if possible.
      • Go to File > Account.
      • Under Product Information, select Update Options > Update Now.
      • If Update Now is not shown, select Enable Updates first.
    2. Start Excel in Safe Mode to check add-ins
      • Press Windows key + R.
      • Type excel /safe and press Enter.
      • Make sure there is a space before /safe.
      • If Excel opens in Safe Mode, go to File > Options > Add-Ins.
      • In the Manage list, select COM Add-ins or Excel Add-ins, then select Go.
      • Clear one add-in at a time, select OK, and restart Excel normally.
      • If Excel starts normally after disabling one add-in, that add-in is the cause.
    3. Run a full Office repair
      • In Windows 10: right-click Start > Apps and Features.
      • In Windows 11: right-click Start > Installed apps.
      • Select Microsoft Office or Microsoft 365 > Modify.
      • Choose Online Repair > Repair.
      • This repairs the full Office suite and is more complete than the repair prompt inside the Excel error dialog.
      • Note: Online Repair requires an internet connection.
    4. If the repair prompt in Excel did not help
      • Use Online Repair from Windows settings or Control Panel instead of only using the in-app Repair Now button.
    5. Check Windows updates
      • Install the latest Windows updates.
      • If the device is running Windows 7, install Service Pack 1 and the latest updates.
    6. If Excel still does not open
      • If Excel does not start even in Safe Mode, the issue is likely not an add-in. In that case, repair Office again, and if needed uninstall and reinstall Office.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

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