Downloaded file refuses to work

Z 0 Reputation points
2026-09-01T19:25:38.8566667+00:00

Evry time I open the Microsoft Excel through a fill sent by my teacher, Excel has an error message if I close and reopen like the message says to it will just do the same thing, and if I click repair now it will close the message and work just fine for 7 minutes then it will force close itself. How do we fix this?

Microsoft 365 and Office | Install, redeem, activate | For education | Windows

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  1. AI answer

    2026-09-01T19:26:00.1666667+00:00

    Try this in order:

    1. Update Office first
      • Open any Office app.
      • Go to File > Account > Update Options > Update Now.
      • Let the update finish, then test Excel again.
    2. Start Excel in Safe Mode to check add-ins
      • Open Run from the Start menu.
      • Type excel /safe and start Excel.
      • If Excel works normally in Safe Mode, an add-in is likely causing the crash.
      • In Excel, go to File > Options > Add-ins.
      • In the Manage list, disable the add-ins, then test again.
    3. Run an Office repair
      • Open Control Panel > Programs > Programs and Features.
      • Select the Office product.
      • Choose Change.
      • Run Quick Repair first.
      • If the problem continues, run Online Repair. This reinstalls Office more completely and is the better option when the app keeps closing after the built-in “Repair Now” prompt.
    4. Check Windows updates and drivers
      • Open Windows Update and install available updates.
      • If the issue continues, update device drivers, especially video card, printer, mouse, and keyboard drivers.
    5. Test the file itself Since the problem happens when opening a file sent by a teacher, the file may be damaged.
      • In Excel, go to File > Open > Browse.
      • Select the file.
      • Click the arrow next to Open.
      • Choose Open and Repair.
    6. If only that workbook crashes Excel The workbook may contain content that causes performance or crash issues, such as:
      • formulas referencing entire columns
      • excessive styles
      • many hidden objects or shapes
      • invalid defined names If possible, test with a different Excel file. If other files open normally, the issue is likely with that specific workbook.
    7. Last step: uninstall and reinstall Office If Excel still force closes after repair, use the Microsoft uninstall troubleshooter, restart the PC, and reinstall Office.
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  2. Chris-D 1,260 Reputation points Independent Advisor
    2026-09-01T19:45:15.63+00:00

    Hi Z,

    Thank you for sharing the details of your situation.

    I understand that Excel displays an error when you open the file sent by your teacher, and although selecting Repair Now allows you to use Excel temporarily, the application closes again after approximately seven minutes.

    To assist you more effectively, could you please provide the following information?

    • What is the exact error message displayed? If possible, please share a screenshot after removing any personal or sensitive information.
    • Does the issue occur only with the file sent by your teacher, or does Excel also close when you open other workbooks or create a blank workbook?
    • Did you download the file to your computer before opening it, or are you opening it directly from an email, Teams, OneDrive, or a web browser?
    • Can you open and edit the same file successfully in Excel for the web?
    • Which version of Windows and Microsoft Excel are you currently using?

    In the meantime, here are some steps you can try:

    1. Save a copy of the file to a local folder, such as Documents, and open that copy instead of opening it directly from the original source.
    2. Open Excel first, select File > Open > Browse, select the affected workbook, click the arrow next to Open, and then choose Open and Repair > Repair.
    3. Test Excel in Safe Mode by pressing Windows key + R, entering excel /safe, and selecting OK. Then open the file again. If Excel remains open in Safe Mode, an Excel or COM add-in may be causing the problem.
    • To disable add-ins, open Excel normally, go to File > Options > Add-ins, select COM Add-ins from the Manage drop-down menu, and click Go. Clear all selected add-ins, click OK, and then restart Excel and test the file again.
    • If the issue is resolved, re-enable the add-ins one at a time to identify the problematic one.
    1. Please also check for Office updates by opening Excel and selecting File > Account > Update Options > Update Now.
    2. If the issue occurs with multiple files, you may repair Microsoft 365 from Windows Settings > Apps > Installed apps > Microsoft 365 > Modify, starting with Quick Repair.
    • If that does not resolve the issue, try Online Repair.
    • How to Repair Your Microsoft Office 365 Installation
    • Please note that Online Repair requires an internet connection and may require you to sign in again afterward.

    Please let me know the results in the comment below, particularly whether the same issue occurs with other Excel files and whether the affected file works in Excel for the web. This will help me determine whether the problem is associated with the individual workbook or the Excel installation.

    I look forward to hearing your thoughts. 

    If the answer is helpful, please click "Yes" and kindly upvote it.

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