: Unlocked framerates, ultra-wide support, and improved foliage physics compared to the original PS4 release.
When large games are distributed, they are often split into smaller "parts" (like .part01.rar through .partXX.rar ) to make downloading and storage more manageable. Horizon.Zero.Dawn-CODEX.part06.rar
If you were to peek inside the headers of this specific archive, you wouldn't find a playable game, but rather: : Unlocked framerates