Alternate startup file location
Supported on: At least Windows Server 2008 R2 or Windows 7
Registry
HKCU
software\policies\microsoft\office\16.0\excel\options Options
altstartup text Description
This policy setting allows you to specify the folder where files will be opened by Excel at startup. If you enable this policy setting, you may specify the folder where files will be opened by Excel at startup. Files will be opened from this folder in addition to the XLSTART folder in the Microsoft Office installation directory (default C:\Program Files\Microsoft Office\Office14\XLSTART). If you disable or do not configure this policy setting, files will only be opened from the XLSTART folder.