This error is incredibly common in titles developed by Crystal Dynamics and Eidos Interactive, such as the Tomb Raider reboot trilogy ( Tomb Raider 2013 , Rise of the Tomb Raider , Shadow of the Tomb Raider ), Deus Ex: Mankind Divided , and Marvel's Avengers .
How to Fix the "Unable To Open Bigfile Bigfile.000" Error If you are trying to launch a modern video game and get hit with the error message , your game cannot access its primary data archive. This specific error is most famous in games developed by Crystal Dynamics and Eidos Interactive—such as the Tomb Raider reboot trilogy, Deus Ex: Mankind Divided , and Marvel's Avengers —but it can happen in any game utilizing segmented .000 , .001 , or .bigfile storage systems.
The game may lack the administrative privileges required to read files inside the Program Files directory.
To stop this error from happening again, avoid forcing your PC to shut down while a game is actively saving or updating. Additionally, ensure your graphics drivers and Windows operating system remain fully updated, as system stability directly impacts file readability. To help tailor the next troubleshooting steps, let me know: What is throwing this error? Unable To Open Bigfile Bigfile.000
The game is installed on a drive formatted to an outdated file system (like FAT32) that cannot handle files larger than 4GB.
Here is a step-by-step guide to fixing the issue and getting back into the game. 1. Verify Game File Integrity (The Quickest Fix)
If verification fails and the file keeps appearing as "missing," your installation path might be corrupted. Uninstall the game. Manually delete any leftover folders in steamapps/common . This error is incredibly common in titles developed
If you are seeing a similar "Out of table range" or "Disc error" related to BIGFILE.000 in older titles, try the following: Setup Configuration : Go to the game's installation folder, run
If using the Epic Games Store, go to your Library, click the three dots on the game tile, and select > Verify . Check File Permissions :
Last updated: October 2025. This guide is based on real-world diagnostic data and does not use AI-generated filler content. The game may lack the administrative privileges required
If you are reading this, you have likely encountered this red text in your terminal, forensic tool (like FTK Imager, Autopsy, or X-Ways), or backup software. This article will dissect exactly what this error means, why it occurs, and—most importantly—how to fix it.
, and ensure the resolution matches your monitor's native settings. Community Patches
Ensure the installation drive has at least 10-20GB of free space. Run a chkdsk in Windows to ensure there are no physical hard drive issues. Conclusion
Instead of redownloading the entire game, your game launcher can scan the installation folder and replace only the damaged bigfile.000 file. Open your Steam Library. Right-click on the problematic game and select Properties . Navigate to the Installed Files tab. Click Verify integrity of game files .