: Security software may flag the game's large data files as false positives, preventing the game from accessing them. File Corruption (Bitrot)
Are you encountering issues while trying to access a large file, specifically one with a .000 extension, and receiving an error message indicating that you're unable to open it? You're not alone. Many users face difficulties when dealing with big files, especially those with unusual extensions. In this article, we'll explore the possible causes behind this issue and provide a step-by-step guide on how to troubleshoot and potentially resolve the problem. Unable To Open Bigfile Bigfile.000
| If your file is... | Use... | |-------------------|--------| | Raw split DD image ( bigfile.000 ) | FTK Imager, Autopsy, xmount , affuse , or losetup on Linux after concatenation | | EnCase segmented E01 ( bigfile.E01 ) | EnCase, FTK Imager, ewfacquire | | 7-Zip multi-volume ( bigfile.7z.000 ) | 7-Zip, PeaZip | | Segmented VMDK ( bigfile-s001.vmdk ) | VMware, VirtualBox, qemu-img | : Security software may flag the game's large
To resolve the "Unable to open bigfile bigfile.000" error, which is most common in the Tomb Raider series (Legend, Anniversary, Underworld, Rise, Shadow) and Marvel's Avengers , you generally need to fix a corrupted game archive Core Fixes for Game Clients Verify Game Integrity : This is the most effective fix. : Right-click the game in your Library > Properties Installed Files Many users face difficulties when dealing with big
If the error happened right after an update, the update itself might have been botched in the cache.
Last updated: October 2025. For further assistance, consult the documentation for the specific tool that produced the "bigfile.000" file.
A system administrator tried to restore a 50GB Acronis True Image backup consisting of backup.000 , backup.001 , and backup.002 . When double-clicking backup.000 , Acronis returned: "Unable To Open Bigfile Bigfile.000".