SEVER RESTORE - PLEASE HELP

I am using the current Virtualmin 3.52.
I had one of my server listed BACKUP and download to my PC.
Now I need to RESTORE the SERVER.
Now My problem is the "Restore Virtual Servers" section of the Virtualmin does not have Browse to enable me pick the backup file from my PC.
Can someone Please asist, how do I RESTORE my server with the backup file on my PC???

PLEASE HELP SOON