when I try to open a excel or word, it shows error and closed. I do not know why?

When you try to open Microsoft Excel or Word and it shows an error and closes, it could be due to several reasons. Here are some common causes and resolutions:

1. Disabled Files: If the file you are trying to open caused a serious error previously, it may be on the list of disabled files. You can check this list and enable the file if necessary.
   • For Word 2003 or Excel 2003, go to Help > About Microsoft Program > Disabled Items.
   • For Word 2007 or Excel 2007, click the Microsoft Office Button > Word Options > Add-Ins > select Disabled Items in the Manage list and click Go.
2. Insufficient Memory or Disk Space: Ensure that there is enough free memory and disk space on your computer. Close any unnecessary programs to free up memory.
3. Windows Firewall: If you are using Outlook to open these files, ensure that the Windows Firewall service is running. You can start it by typing services.msc in the Run dialog and finding Windows Firewall to start it.
4. Corrupted Files: The files you are trying to open may be corrupted. You can try to open and repair the file by going to File > Open > select the file > choose Open and Repair from the dropdown menu.
5. Clean Startup: Sometimes background programs can interfere with Office applications. Performing a clean startup of your operating system may help resolve the issue.

If these steps do not resolve the issue, you may need to consider reinstalling Microsoft Office or checking for updates.

Hi,

please show a screenshot of the error message.

Try to run Word and Excel in safe mode. https://support.microsoft.com/en-us/office/open-office-apps-in-safe-mode-on-a-windows-pc-dedf944a-5f4b-4afb-a453-528af4f7ac72