Rise Of The Tomb Raider Unable To Open Bigfile.000 May 2026

Fix: Rise of the Tomb Raider “Unable to Open BIGFILE.000” Error

One of the more frustrating errors encountered when launching Rise of the Tomb Raider (particularly on PC) is the “Unable to open BIGFILE.000” message. This error prevents the game from starting, often appearing immediately after clicking “Play” on Steam or hitting the game executable.

The "Rise of the Tomb Raider Unable To Open Bigfile.000" error is a common frustration for PC players. This error typically occurs when the game client cannot access or read the primary data archives required to launch. It usually points to corrupted files, permission conflicts, or hardware instability. Quick Fixes Restart Steam/Epic: Close the launcher completely. Run as Admin: Right-click the game executable. Check Disk Space: Ensure you have at least 5GB free. Core Troubleshooting Steps 1. Verify Game File Integrity Rise Of The Tomb Raider Unable To Open Bigfile.000

Target Audience:

Check Disk Space & Memory: This error can be triggered if your drive is full or your PC runs out of RAM while trying to unpack the large archive file. Ensure you have at least several gigabytes of free space on your installation drive. Fix: Rise of the Tomb Raider “Unable to Open BIGFILE

  1. File Corruption: The archive has been corrupted during download, disk writing, or improper shutdown.
  2. Antivirus Quarantine: Security software has flagged Bigfile.000 as a false positive threat and locked or removed the file from the directory.
  3. Permission Rights: The user lacks the necessary read/write privileges for the folder containing the game files.