If you are looking for where to place the contents of such a zip, the most common directories are:
Be cautious with files from unofficial sources like file-sharing sites. Compressed files from sources like Reddit's CrackSupport or Filerox may carry security risks or require specific cracks to run. 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
%USERPROFILE%\Documents\WB Games\Batman Arkham Origins\SaveData\ . or community-made mods and fixes.
\userdata\ \209000\remote\ .
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.
Searching for typically relates to game downloads, save files, or community-made mods and fixes.