If the saves are zipped, try saving the zipped folder directly to your desktop. Then see if either of the following works for you:
(a) Double click on the zip folder which should open right up and allow you to remove the saves inside.
(b) Right-click on the zip folder and select "Extract files". Confirm the choice that pops up, and then that should create a separate yellow folder on your desktop that you can open and use the saves that you need.
"Bleat, Watson -- unmitigated bleat!" ~ Sherlock Holmes