Unable to import .cab to compare GPOs

Hi,

We try to use the SCM 4.0.0.1 to compare GPOs.

I exported a group policy object from AGPM as .cab file. When trying to Import by selecting the .cab file > Add the gpo.cab > It give an error

The package appear to be missing the required component 'package.xml'

We use AGPM for controlling GPO.

please shed some lights on what package.xml is missing from the GPO? and how to compare using SCM.

thank you

Best Regards,