In Windows XP, the .qat toolbar files are saved in the following location:
C:\Documents and Settings\username\Local Settings\Application Data\Microsoft\Office
In Windows Vista, the .qat toolbar files are saved in the following location:
For more information about how to customize the Quick Access Toolbar, click Microsoft Office program Help, type quick access toolbar in the Search box, and then click Search to view the topics that are returned.
For more information about how to make the default location of the .qat files into a roaming location, click the following article number to view the article in the Microsoft Knowledge Base:
958062 Quick Access Toolbar files for 2007 Office applications do not roam with your profile