Why am I getting an error on opening Word & Excel documents ?

Harry Singh 0 Reputation points
2026-09-17T05:38:04.67+00:00

Am not able to open any word or excel documents, always getting an error...

Microsoft 365 and Office | Excel | For home | Windows
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  1. AI answer

    2026-09-17T05:38:26.7566667+00:00

    Common causes in this scenario are:

    • Office is damaged or corrupted.
    • An add-in is preventing Word or Excel from starting correctly.
    • Office is out of date.
    • A downloaded or damaged file needs to be opened with a repair option.
    • On Windows 8, Windows 8.1, or Windows Server 2012, the Windows Firewall service being stopped can cause Word, Excel, and even PowerPoint files from external sources to fail to open.

    Try these steps in order:

    1. Update Office
      • Open any Office app if possible.
      • Go to File > Account > Update Options > Update Now.
    2. Start Word or Excel in Safe Mode
      • Press Windows + R.
      • For Word, type winword /safe and press Enter.
      • For Excel, type excel /safe and press Enter.
      • If the app opens in Safe Mode, the issue is likely an add-in.
    3. Disable add-ins
      • In the Office app, go to File > Options > Add-Ins.
      • In Manage, select the add-in type and choose Go.
      • Clear one add-in at a time, select OK, then restart the app normally.
      • If the app opens after one add-in is cleared, that add-in is the cause.
    4. Repair Office
      • Open Control Panel > Programs > Programs and Features.
      • Select the Office product.
      • Choose Change.
      • Run Quick Repair first.
      • If that does not help, run Online Repair.
      • This is the recommended next step when the built-in repair prompt does not fix the problem.
    5. Try opening the file with repair
      • In Word, Excel, or PowerPoint, go to File > Open > Browse.
      • Select the file.
      • Select the arrow next to Open.
      • Choose Open and Repair.
    6. If the file came from email, browser download, or another external source
      • On Windows 8, Windows 8.1, or Windows Server 2012, check that the Windows Firewall service is running:
        • Press Windows + R.
        • Type services.msc and select OK.
        • In Services, right-click Windows Firewall and select Start.

    If Word or Excel still does not open at all after Safe Mode and repair, continue with Windows Update to install the latest device drivers and updates.

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

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  2. DaveM121 933.5K Reputation points Independent Advisor
    2026-09-17T06:10:47.7433333+00:00

    The 'Repair Now' button on that error popup dialog only performs a quick repair of the Office apps and that rarely resolves the problem with the Office apps, the best option is to perform a full online repair of your Office installation.

    Before performing this process, please log into your Microsoft account on this link (https://account.microsoft.com/services/) and check to ensure your Office licence or Microsoft 365 subscription is listed correctly on your account.

    Open the Settings App (gear icon on your Start Menu)

    Go to Apps, then scroll down to find Microsoft Office

    Select that and choose Modify - Online Repair

    That should fix any issues with your Office Installation.

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  3. ApexNáV 360 Reputation points
    2026-09-17T10:00:57.05+00:00

    Run a online repair. Check this below page by Microsoft for instructions:

    https://support.microsoft.com/en-us/office/lifecycle/repair-an-office-application

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