: In older titles like Tomb Raider: Legend , this error can sometimes be fixed by changing the game's resolution in the external setup menu before launching.
The error is a critical crash that completely prevents games built on Crystal Dynamics' Foundation Engine—such as Rise of the Tomb Raider , Shadow of the Tomb Raider , and Marvel's Avengers —from launching. This error explicitly triggers right after an update or game patch, indicating that the game launcher cannot read its primary compressed asset archives ( .tiger or .bigfile blobs).
The "unable to open bigfile: bigfile000 updated" error can occur due to several reasons:
: The data signature changes during patching, causing the launcher to treat the file as a broken, unreadable binary blob.
How to Fix the "Unable to Open Bigfile bigfile000.updated" Error
Finally sat down to play [Game Name] and got hit with the "unable to open bigfile bigfile000 updated" error. I’ve already tried restarting, but no luck.
: On platforms like Steam Support , right-click the game in your library, go to Properties > Installed Files , and select Verify integrity of game files . This will automatically detect and redownload corrupted bigfile components.
: The game launcher lacks permission to modify or read files in the installation directory.
A: No, you should not. Downloading core game files from unofficial sources is highly risky. They may be infected with malware, are often outdated, or may not be compatible with your specific game version. The safe methods are verifying file integrity or reinstalling the game.
# Define the file in question bigfile="bigfile000"
If this works, permanently enable it by right-clicking the icon →right arrow →right arrow Compatibility tab →right arrow Check Run this program as an administrator →right arrow Apply . 2. Verify Integrity of Game/Application Files
Click the three dots ( ... ) under the game tile →right arrow Manage →right arrow Click Verify .