If the file is corrupted—perhaps due to a bad download or a sudden system crash—Steam or the Epic Games Store can fix it automatically.
For Steam Users:
For Epic Games Launcher Users:
Once finished, try launching the game.
The “unable to open bigfile.000” error in Shadow of the Tomb Raider is almost never a game-breaking bug from the developer. It is almost always a local machine issue, with aggressive antivirus being the number one cause. By adding a folder exclusion to Windows Defender or your preferred antivirus, you will resolve the problem in 90% of cases. shadow of the tomb raider unable to open bigfile.000
If you are the 10% who needs to verify files or reinstall on a new drive, do not despair. The solutions above have been tested across thousands of user reports on Steam Community, Reddit, and official Square Enix forums.
Lara Croft’s final adventure awaits – don’t let a single archive file stop you.
Have a unique fix that worked for you? Share it in the comments below to help fellow tomb raiders.
Shadow of the Tomb Raider "Unable to Open bigfile.000" Error If the file is corrupted—perhaps due to a
Nothing kills the excitement of exploring ancient ruins faster than a "failed to open bigfile.000" error. This persistent issue usually points to a corrupted game file or a permissions conflict that prevents the game engine from accessing its core assets.
If you’re staring at this error instead of a Mayan temple, here is a step-by-step guide to get Lara Croft back in action. 1. Verify Integrity of Game Files The most common cause is a corrupted bigfile.000.tiger
. Instead of redownloading the entire game, let your launcher find and fix the specific broken parts. For Steam Users: and right-click on Shadow of the Tomb Raider Properties Installed Files (or Local Files).
Before fixing the error, it helps to understand why it happens. The causes typically fall into four categories: For Epic Games Launcher Users:
If you are trying to launch Shadow of the Tomb Raider and are met with the cryptic error message “Unable to open bigfile.000,” you are not alone. This is one of the most frustrating errors for PC gamers because it blocks access to the game immediately, usually preventing launch or causing a crash during the initial loading screen.
The bigfile.000 is not a random file; it is a core game asset archive. It contains critical data like textures, sound, voice lines, and level geometry. If the game cannot read this file, it cannot run.
Below is a deep dive into what causes this error and the step-by-step solutions to fix it permanently.