Excel error cannot open file

Question

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

Answer 1

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.

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References

1. Excel not responding, hangs, freezes or stops working
2. Repair an Office application