my microsoft excel is not properly working working so please resolve the issues

If Excel will not open, first end any Excel process that is stuck in the background, restart Windows, and then test Excel again.

1. Close a stuck Excel process

1. Press Ctrl + Shift + Esc to open Task Manager.
2. Under Processes, look for Microsoft Excel.
3. If it appears, select it and choose End task.
4. Restart the computer, then open Excel again. This resolves cases where Excel remains running invisibly and prevents a new instance from starting.^1^

If Excel still shows an opening error, continue below.

2. Test Excel in Safe Mode

Safe Mode helps determine whether an add-in or Excel startup customization is involved.

1. Press Windows key + R.
2. Enter:

excel /safe

3. Select OK. There must be a space before /safe.
4. Check whether the title bar says Microsoft Excel (Safe Mode).^2^

If Excel opens in Safe Mode

Disable add-ins and identify the problematic one:

1. Select File → Options → Add-ins.
2. At the bottom, select COM Add-ins from Manage, then select Go.
3. Clear all checkboxes and select OK.
4. Close Excel and open it normally.
5. If Excel now works, re-enable add-ins one at a time, restarting Excel after each one, until the error returns.
6. Repeat the test with Excel Add-ins selected in the Manage list if COM add-ins were not responsible.^3^

Leave the problematic add-in disabled, remove it, or obtain an updated version from its publisher.

If Excel does not open in Safe Mode

Safe Mode failure does not establish a specific cause. Proceed with Office updates and repair.

3. Install Office updates

If another Office application such as Word opens:

1. Open Word and create a blank document.
2. Select File → Account.
3. Under Product Information, select Update Options → Update Now.
4. Install available updates and restart the computer.^2^

If no Office application opens, skip directly to repair.

4. Repair Microsoft 365 or Office

Repair affects the entire Office suite, not only Excel.^4^

Windows 11

1. Right-click Start → Installed apps.
2. Find Microsoft 365 or Microsoft Office.
3. Select the three dots → Modify.

Windows 10

1. Right-click Start → Apps and Features.
2. Select Microsoft 365 or Microsoft Office.
3. Select Modify.

Then choose the option matching the installation:

• Click-to-Run: Select Online Repair → Repair. This is more complete than Quick Repair and requires an internet connection.
• MSI-based Office: Select Repair → Continue.

Complete the prompts, restart Windows, and test Excel again.

5. If the error continues

Before uninstalling Office, confirm that the Microsoft 365 subscription or Office licence is associated with the correct Microsoft account and that the sign-in details needed to reinstall it are available. Then use Microsoft’s Office uninstall troubleshooter and reinstall Office. Microsoft lists reinstalling after Safe Mode, add-in checks, updates, and repair do not resolve the startup failure.^2^

If assistance is still needed, provide:

• The exact error-message text or a screenshot with personal information hidden.
• Whether excel /safe opens Excel.
• Whether other Office applications open.
• Whether the error occurs when opening Excel itself or only one particular workbook.

References

1. Excel is not woking on my desk top - Microsoft Q&A
2. I get a "stopped working" error when I start Office applications on my PC | Microsoft Support
3. Excel not responding, hangs, freezes or stops working
4. Repair an Office application