. Steam will automatically identify and redownload any corrupted parts of the bigfile.000 Run as Administrator: Navigate to the game's installation folder, right-click the file, and select Run as Administrator to ensure it has full access to the data files. Check for Disk Space:
: Ensure your graphics drivers are current, as outdated drivers can sometimes cause the game to hang before it successfully mounts its data archives.
After investigating various player reports and forums, we've identified some common causes of the Bigfile000 error:
How to Fix the Rise of the Tomb Raider "Unable to Open Bigfile.000" Error Better rise of the tomb raider bigfile000 error better
Get-AppXPackage -AllUsers | Foreach Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml" Use code with caution.
Your antivirus may be blocking the game from reading large files. Add the entire Rise of the Tomb Raider folder to your Exclusions list in Windows Security or your third-party antivirus.
The "bigfile000" error points to a problem with one of the game's core data archives. In Rise of the Tomb Raider , the game's assets (models, textures, audio, etc.) are stored in files with names like bigfile.000.tiger , bigfile.001.tiger , bigfile.003.tiger , and so on. This "Tiger" archive format has been used in Tomb Raider games since 2013. After investigating various player reports and forums, we've
[Game Engine] ──(Tries to Load Asset)──> [bigfile000.tiger Archive] │ ┌─────────────────────────────────────┴─────────────────────────────────────┐ ▼ ▼ ▼ [File is Corrupted] [Storage Drives Desync] [Security App Blocks File] Steam/Epic file is missing bits HDD latency / Out of memory Antivirus flags false positive │ │ │ └─────────────────────────────────────┼─────────────────────────────────────┘ ▼ 💥 RESULT: "Unable to open bigfile000"
Using an older mechanical hard drive (HDD) often triggers the bigfile error because the drive cannot read the compressed blocks fast enough during heavy rendering transitions. Moving the game files to an internal SSD fixes data transfer bottlenecks: Open ➔ Settings ➔ Storage . Select your SSD from the drive list.
The most common cause is a corrupt or missing data archive. Verification forces your launcher to scan all files and redownload any that don't match the official version. Right-click Rise of the Tomb Raider in your Library . Select Properties > Installed Files . The "bigfile000" error points to a problem with
Do not waste time redownloading the entire game asset catalog. Deleting only the broken archive forcing the error is a much better approach. Close completely.
File corruption is the most common culprit. If the bigfile.000 file has been damaged during download, installation, or by a previous crash, the game will fail to read it.
When the game boots or loads a new zone, it requests data from these archives. The error triggers due to three main causes: