Rise Of The Tomb Raider Unable To Open Bigfile000 Top -

Cut and paste this folder onto your desktop to back up your save files.

Updated: December 2025 — tested on Steam version 1.0.1026.0.

Verifying game files can help identify and fix corrupted or damaged game files that may be causing the error. To verify game files:

If using third-party protection (like Avast, Bitdefender, or Malwarebytes), explicitly whitelist both ROTTR.exe and the underlying folder directory. 3. Adjust Compatibility Settings & Admin Privileges rise of the tomb raider unable to open bigfile000 top

| Cause Category | Specific Reason | Likelihood | |----------------|----------------|-------------| | | Incomplete download, patching error, or disk write error | High | | Permission Restriction | Antivirus/ransomware protection blocking game access to .tiger files | High | | File Path/Name Mismatch | Incorrect case sensitivity (rare on NTFS but possible on Linux/Proton) or renamed/moved file | Medium | | Disk Errors | Bad sectors on HDD/SSD where the archive resides | Low | | Third-Party Interference | Overlay software (Discord, NVIDIA GeForce Experience), mod loaders, or file hooks | Medium |

A small number of users have reported this error appearing after a Windows update changed how the game reads its archive headers. In that rare case:

Look for "Ransomware Protection" or "Controlled Folder Access" and whitelist the game’s folder. Cut and paste this folder onto your desktop

Once the repair actions are applied, the game engine will successfully load bigfile000.tiger at startup. This resolves the white-screen initialization hangs, allowing the launcher to process your configurations and load the game smoothly.

(Discord, MSI Afterburner, GeForce Experience) – Disable overlays temporarily

: Ensure your GPU drivers (NVIDIA/AMD) and Windows are fully updated to prevent "Archive header mismatch" errors. Disable Fullscreen Optimizations : Right-click the game Properties Compatibility Disable fullscreen optimizations 🧪 Advanced Troubleshooting Clean Installation To verify game files: If using third-party protection

Go to your game installation directory and locate ROTTR.exe (or your desktop shortcut). Right-click the executable file and select . Change to the Compatibility tab. Check the box for Run this program as an administrator .

Follow this step-by-step troubleshooting guide to repair your game files and get back to exploring. 1. Verify Integrity of Game Files

This error can be particularly troublesome for users who downloaded the game via torrents or from unofficial sources, where file integrity is not guaranteed. A 2016 forum discussion highlighted this exact problem, with a user stating that "这是解压游戏时，有地方出错了" ("This is an error during game decompression"). The same principle applies to archive files you might have downloaded separately, like language packs or mods.