Plug in advice needed

The Plug in is:- Version 1.1.8 | By Backup Guard | View details
but this was the original question:-

I’m trying to develope a www site on my PC.

I have got WordPlus working with ftp ok.

I have added a plugin called Backup Guard

I have a file called sg_backup_20160616190304.sgbp

Now I would like to restore it to be on on the Hard Disk on my PC.

Question:-

I don’t know how to have this restore sit on a given directory on the Hard Disc.

Hope this makes some sort of sense. As its my second post, any thoughts would be very welcome.

Many thanks,

Tim