Rise Of The Tomb Raider Unable To Open Bigfile.000 Official

The most common cause is a corrupt or missing bigfile.000 asset. You can use your game launcher to automatically scan and replace damaged files.

This is a niche but effective fix for users who installed the game on a secondary or external hard drive. Sometimes, the game engine hard-codes a drive letter expectation (e.g., "D:") that changes after a reboot. Rise Of The Tomb Raider Unable To Open Bigfile.000