Anytime you download multiple clips of footage from us (be they from games, highlights, or reviews), that footage will be returned to you in a zip file.
(If you need more information on downloading your games from VidSwap, please see this article here.)
To open zip files on a Mac, simply double click on the zip file. It should open for you automatically.
To open zip files on a PC, please follow these steps here. If you need a program to help open zip files, we recommend 7-Zip.