The bigfile000.tiger is a massive archive. If your drive is at 99% capacity, the game may struggle to create the temporary cache files needed to read that archive.
Because bigfile000.tiger maps directly to your system's memory allocation space during launch, restricted virtual memory can cause initialization failures.
Outdated or corrupted display drivers struggle to allocate the VRAM needed to open massive asset archives, leading to instant rendering crashes. How To Fix Rise of the Tombraider Crashing! (100% FIX) rise of the tomb raider unable to open bigfile000 top
2. Configure Administrator Privileges and Compatibility Mode
Standard validation sometimes fails if file indexing is corrupt. Deleting the specific corrupt file first forces the launcher to source a fresh, working copy from the server. The bigfile000
If you have tried all eight solutions and still see "unable to open bigfile000 top," there is one final possibility:
If you downloaded the game as a .rar or .zip archive, re-extract the files. If the extraction process fails at a specific point—for example, at 2.7% to 4.3% as some users have reported—it is almost a certainty that your downloaded archive is corrupted. The only reliable solution is to re-download the problematic file from a trustworthy source. Outdated or corrupted display drivers struggle to allocate
If none of the above steps work, a clean reinstallation may be necessary. However, do not simply delete the folder—use the official uninstall process and then delete any remaining files manually.
While not directly reading a file, outdated graphics drivers can cause the engine to fail during initialization. Update your NVIDIA or AMD drivers through their respective software. Summary of Solutions Targeted Problem Corrupted/missing data files Antivirus Exclusion Security software blocking file access Run as Administrator Lack of permission to read files Rename/Redownload Permanently corrupted local file How to Prevent Future "Bigfile" Errors
Antivirus software loves to block bigfile.000 because the game constantly reads large chunks of data from it, resembling suspicious behavior.