Pubg_gj.rar →

If this is for a specific tournament or "GJ" (Global Junior) event, it may contain specific player data or match replays, though this is less common for general users.

Depending on where you encountered it, this file usually falls into one of two categories:

In some contexts, these .rar files contain configuration files ( Active.sav or UserCustom.ini ) or "scripts" intended to give players an unfair advantage, such as recoil reduction or increased visibility. Key Context about PUBG