Since it is a .zip file, you must first extract it to see the "pieces" inside. Standard tools like 7-Zip or WinRAR can open the archive.

Depending on the specific "cheats" included, you generally use one of two methods to "piece" them into the game:

Hotkeys or automated logic to change your loadout based on health or nearby enemies.

It is safer to test these in a separate browser profile or a virtual environment. Gamma - PS 1 Game Emulator - App Store - Apple