: Click the three dots next to the game > Manage > Verify .
The error "Unable to open bigfile.000!" in typically indicates that the game cannot access its primary data archives. This is often caused by corrupted installation files, antivirus interference, or insufficient administrative permissions. Quick Fixes to Try First rise of the tomb raider unable to open bigfile000 top
: Add the game's installation folder to your antivirus/Windows Defender exclusion list. Security software often misidentifies large files as threats. Update Drivers : Click the three dots next to the game > Manage > Verify
Antivirus software loves to block bigfile.000 because the game constantly reads large chunks of data from it, resembling suspicious behavior. resembling suspicious behavior.
