Hello,
For exporting reports:
(Compliance -> (select) View Report -> Export)
As far as I know, you cannot include Description from Rule.
I suggest creation Rules with name describing violation, with proper Alert level (Informational, Warning, Critial)
In excel sheet you will get letters for those levels (I, W, C):
I don't know better way to simplify this.
Regards,
Mateusz