Frequently reported in Tomb Raider: Legend , Rise of the Tomb Raider , Shadow of the Tomb Raider , and Marvel's Avengers .
As a professional who has dealt with disk images, virtual machine exports (like .vmdk or .raw ), and split archive files (like .7z.001 , .000 ), encountering the message Unable To Open Bigfile Bigfile.000 is the computing equivalent of a doctor saying, "Well, something hurts." It is technically accurate but functionally useless. Unable To Open Bigfile Bigfile.000
Reinstall the game on a (preferably an SSD) to rule out hardware failure (bad sectors) on your primary drive. Frequently reported in Tomb Raider: Legend , Rise
Start by running as Administrator. It fixes the issue in the vast majority of cases. Start by running as Administrator
: The game may crash or fail to launch if there isn't enough space on the installation drive to handle temporary files or updates.
Knowing the signature tells you which software to use.