If you are looking for where to place the contents of such a zip, the most common directories are:
Large zip files (often much larger than 2GB, as the full game on Steam is ~20GB) may contain repackaged or cracked versions of the game. File: Batman Arkham Origins.zip ...
Smaller zips often contain save game files to help players bypass difficult sections like the Deathstroke boss fight or to reach 100% completion. If you are looking for where to place