File: Cos_ro2_dlc.rar ... May 2026

: Copy your game’s original folder before moving any new files.

: Drag the extracted files into the main game folder. If prompted to "Overwrite existing files," select Yes (this is usually required for mods/DLC to work). File: COS_RO2_DLC.rar ...

Knowing the internal file extensions (like .pkg, .txt, or .data) would help me give you more exact steps. : Copy your game’s original folder before moving