The "Unable to open bigfile.000" error in Rise of the Tomb Raider
- Open your antivirus dashboard (Windows Defender, Avast, etc.).
- Find Real-time protection or Shield controls.
- Disable it temporarily (5 minutes).
- Launch the game. If it works, you've found the culprit.
- Permanent fix: Add the entire Rise of the Tomb Raider folder to your antivirus’s exclusion list.
The "unable to open bigfile000.tiger" error in Rise of the Tomb Raider is a critical failure often caused by data corruption, restrictive security settings, or resource constraints. Resolving this issue typically involves verifying game file integrity through Steam or Epic Games, adjusting administrator permissions, and updating GPU drivers. For a community-driven technical discussion on this specific error, visit this Reddit thread.
5. Disable Controlled Folder Access (Windows 10/11)
This feature blocks apps from modifying files in
Documents,Pictures,Downloads, etc. — but sometimes it overreaches.In conclusion, the "Rise of the Tomb Raider unable to open BigFile000.top" error can be a frustrating issue for players, but it can often be resolved through troubleshooting steps such as verifying game files, updating graphics drivers, and disabling overlay software or mods. By trying these steps, players can get back to enjoying the game and exploring the world of Lara Croft.
"Unable to open BIGFILE.000 - The top level asset manifest has the wrong version. Please ensure you are running the latest version of the game."
Epic Games: Click the three dots next to the game > Manage > Verify.