I understood that is not possible:
It seems that File Level Restore is actually a Windows-only feature, not supporting even ext4 nor any disk with more than one partition.
Hi, you can try VMcom Backup Appliance (https://vmcom.com) instead of VDP for linux file-level restores.
It supports both xfs and ext4 and also multiple partitions on a single vdisk. At this point, it does not support LVM though. (LVM support will be added in near future.)