Excel error cannot open file

Cheryl Naidoo 0 Reputation points
2026-11-12T10:02:48.0266667+00:00

I am unable to open my excel. it gives an error. It says excel has run into an error and needs to be closed

Microsoft 365 and Office | Excel | Other | Windows
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  1. AI answer

    2026-11-12T10:03:26.91+00:00

    Start Excel in Safe Mode to bypass add-ins and startup customizations; if the error remains, run an Online Repair of Microsoft 365.

    1. Test Excel in Safe Mode

    1. Press Windows key + R.
    2. Enter: 
         excel /safe
    3. Select OK.

    Safe Mode bypasses Excel and most COM add-ins, startup folders, and certain custom settings.^1^

    If Excel opens successfully:

    1. Go to File → Options → Add-ins.
    2. At the bottom, select COM Add-ins under Manage, then select Go.
    3. Clear all checkboxes and select OK.
    4. Close Excel and start it normally.
    5. If it now works, re-enable add-ins one at a time, restarting Excel after each one, to identify the problematic add-in.^1^

    2. If Safe Mode also fails, repair Office

    Close all Office applications first. The repair applies to the entire Office suite, even when only Excel is affected.^2^

    Windows 11

    1. Right-click Start → Installed apps.
    2. Find Microsoft 365 or Microsoft Office.
    3. Select the three dots → Modify.
    4. For a Click-to-Run installation, select Online Repair → Repair.
    5. For an MSI installation, select Repair → Continue.

    Windows 10

    1. Right-click Start → Apps and Features.
    2. Select Microsoft 365 or Microsoft Office → Modify.
    3. Choose Online Repair → Repair, or Repair → Continue for an MSI installation.

    Follow the prompts, restart Windows after completion, and then launch Excel before opening a workbook. Online Repair is the more complete option; Quick Repair only detects and replaces corrupted files.^2^

    If Excel opens normally but only one particular workbook fails, that is a separate file-level problem rather than an Excel startup failure.

    References

    1. Excel not responding, hangs, freezes or stops working
    2. Repair an Office application
    AI-generated content may be incorrect. Read our transparency notes for more information.

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    3 people found this answer helpful.
  2. DaveM121 948.5K Reputation points Independent Advisor
    2026-11-12T10:35:18.8933333+00:00

    Hi Cheryl, this seems to be an ongoing bug with the Office apps for a couple of days which may be caused by an update, there are many people reporting this problem.

    1

    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 to ensure you do not loose the Office installation during the repair, 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 - Installed Apps or Apps and Features

    Then, scroll down to find Microsoft Office or Microsoft 365.

    Select that and choose Modify - Online Repair

    That should fix any issues with your Office Installation.

    2

    If that does not resolve the problem, are you seeing any notification at the bottom right of your screen indicating Smart App Control security is blocking Office.

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