I’m on godaddy, and used dthe method mentioned above by kvgorham
I copied my backup from the source site to the target site to:
‘/home/content/-/-/html/wp-content/uploads/wp-clone/’
(I had already made a clone backup of the other site, so I copied the new backup to the file name of the old one, there may be a better way for it to appear in the list)
Then I clicked restore through the GUI and it worked.
