Rise Of The Tomb Raider Unable To Open Bigfile.000 May 2026

REPORT: Diagnosis and Resolution for "Unable to Open Bigfile.000" Error

Steam: Right-click the game in your library > Properties > Installed Files > Verify integrity of game files.

1. Go to Settings > Privacy & Security > Virus & threat protection.
2. Click Manage settings under "Virus & threat protection settings."
3. Scroll down to Exclusions and click Add or remove exclusions.
4. Click Add folder and navigate to the folder where Rise of the Tomb Raider is installed (e.g., C:\Program Files (x86)\Steam\steamapps\common\Rise of the Tomb Raider).
5. Add the folder, then restart your PC and try the game.

Development Plan:

. This file contains the bulk of the game’s assets, so the game cannot launch without it. Most Effective Fixes unable to start game- bigfile bigfile.000! error 2 Jun 2024 —