Rise of the Tomb Raider remains a masterpiece of action-adventure, but launching it on PC in 2026 can sometimes lead to frustrating errors. One of the most common launch-breaking issues is the (or .tiger in some versions) error, which prevents the game from starting, usually resulting in a crash-to-desktop or a frozen splash screen.
Navigate to your installation directory (e.g., C:\SteamLibrary\steamapps\common\Rise of the Tomb Raider\ ). Find the file explicitly named . Right-click and Delete it completely. rise of the tomb raider unable to open bigfile000 top
After fixing the error, launch the game in DirectX 11 mode (not DX12) for the most stable bigfile reading experience. You can select this in the game’s launch options or the initial settings launcher. Rise of the Tomb Raider remains a masterpiece
Check the box for Run this program as an administrator . Find the file explicitly named
For a more robust solution that even works for multiple older Tomb Raider titles, an advanced user devised a unique method: creating a in Windows, mounting it to the C: drive, and installing the game there. This tricks the game into thinking it's running from the system's startup disk, bypassing all manner of path-related issues. This advanced technique is reliable for users who have the technical know-how and are struggling with persistent errors.
💡 : Always ensure your GPU drivers are updated to the latest version, as NVIDIA and AMD often release patches specifically designed to help game engines handle large asset streaming.