why my excel and word not performing i am facing trouble to open it

Run an Online Repair of Microsoft 365/Office, because it repairs the entire Office suite—including both Excel and Word—and is the recommended repair option for this startup error.

1. Repair the complete Office installation

1. Close Excel, Word, Outlook, and any other Office applications.
2. Open the repair screen:
   • Windows 11: Right-click Start → Installed apps.
   • Windows 10: Right-click Start → Apps and Features.
3. Find Microsoft 365 or Microsoft Office.
4. Select the three dots or select the product, and then choose Modify.
5. For the common Click-to-Run installation, select Online Repair → Repair.
   • Choose Online Repair, not merely Quick Repair. Online Repair performs the more complete repair.
   • If an MSI-based installation displays a different window, select Repair → Continue.
6. Allow the process to finish without cancelling it, and then restart the computer.
7. Open Excel and Word and verify that each reaches a blank document normally.

These steps repair the whole Office suite even when initiated for only one application.^1^

2. If only one application still fails

Test the affected application in Office Safe Mode, which starts it without normal add-ins and customizations:

1. Press Windows key + R.
2. Enter the applicable command, including the space before /safe:
   • Excel: excel /safe
   • Word: winword /safe
3. Select OK.

If the application opens in Safe Mode:

1. Go to File → Options → Add-ins.
2. At the bottom, set Manage to COM Add-ins, and select Go.
3. Clear one add-in at a time, select OK, and restart the application normally.
4. When the application starts normally, leave the problematic add-in disabled or obtain an updated version from its publisher.^2^

If neither Excel nor Word starts in Safe Mode, add-ins are less likely to be the issue; proceed to reinstallation rather than repeatedly changing add-in settings.

3. If Online Repair does not resolve it

Uninstall and reinstall Microsoft 365/Office:

1. Confirm that the Microsoft account used to purchase or activate Office is available.
2. Use Microsoft’s Office uninstall troubleshooter on the affected Windows PC.
3. Follow its prompts and restart when requested.
4. Reinstall the Office version associated with the account.

The uninstall troubleshooter requires Windows 10 or later and currently cannot uninstall Office 2024; Office 2024 may require another supported uninstall method.^3^

References

1. Repair an Office application | Microsoft Support
2. I get a "stopped working" error when I start Office applications on my PC | Microsoft Support
3. "Something went wrong" error when you try to start a Microsoft 365 app