If the menus and toolbars in your Excel application are accidentally messed up, such as adjusting the location of the menu items, disabling some menu items without restoring, removing some menu items, and so on, you want to revert to the default state, here's an easy way to delete the *.xlb file.
This file is in this directory: C:documents and settings< username >application datamicrosoftexcel
Where,< username > represents the sign-in name on your computer. For Excel 2003来 said, the file name is excel11.xlb.
At this point, you don't have to worry. When you open Excel again, Excel automatically regenerates the new. xlb file for you. Here's the Secret: Excel stores the configuration of toolbars and menu bars in the Xlb file, and the current configuration is saved to the Xlb file when you change the toolbars and menu bar and exit Excel. If the xlb file is corrupted, Excel may crash when it starts. At this point, you can delete the Xlb file or rename the Xlb file, and Excel will create a new xlb file.
Note: Normally, the folder is hidden and you need to change folder options to display all of the files and folders.