If you’ve encountered the error message you’re likely trying to run a game or application—most commonly associated with Square Enix titles like Tomb Raider , Deus Ex , or Hitman —and finding yourself stuck at a crash-to-desktop or a black screen.
This error essentially means the game engine is trying to access its primary data archive ( BIGFILE000 ) with "exclusive" read/write permissions but is being blocked by another process or a system restriction.
Disable overlays from Discord, Steam, or NVIDIA GeForce Experience, as these sometimes interfere with how a game takes control of the screen. 5. Update Graphics Drivers unable to open bigfile bigfile000 exclusive
Sometimes security software flags large data archives as suspicious. Add your game folder to the Exclusion List in Windows Defender or your third-party antivirus.
Here is a step-by-step guide to fixing the issue and getting back into your game. 1. Disable Exclusive Fullscreen If you’ve encountered the error message you’re likely
Wait for the process to finish; it will automatically redownload any corrupted parts of the bigfile. 4. Check for Background Interference
Troubleshooting the "Unable to Open Bigfile BIGFILE000 Exclusive" Error Here is a step-by-step guide to fixing the
Are you seeing this error on a or a Windows PC , and which specific game are you trying to launch?
If BIGFILE000 is corrupted or missing a few kilobytes of data, the engine won't be able to open it correctly. Steam and other launchers have a built-in way to repair this without a full reinstall. Right-click the game in your Library . Select Properties > Installed Files . Click Verify integrity of game files .
In 90% of cases, in the game's launcher settings fixes this error instantly. If that fails, administrative privileges and file verification are your next best bets.