The "bigfile" error looks scary, but it’s rarely a broken game. In 90% of cases, running as admin + antivirus exclusion solves it immediately. If you’re still stuck, check your Windows Event Viewer (Applications log) for a more specific error code tied to 0xc0000022 — that’s almost always permission-related.
Have you fixed this a different way? Let me know in the comments below.
Updated: December 2025 — tested on Steam version 1.0.1026.0.
The "Rise of the Tomb Raider unable to open BigFile000.top" error is a frustrating issue that has plagued many players of the popular action-adventure game. This error typically occurs when the game is unable to access or load a specific file, BigFile000.top, which is required for the game to function properly.
There are several reasons why this error may occur, including corrupted game files, outdated graphics drivers, and conflicts with other software installed on the player's computer. One of the most common causes of this error is a corrupted game file, which can occur due to a variety of factors such as a faulty download or installation process, or a virus infection.
To resolve this issue, players can try several troubleshooting steps. First, they can try verifying the integrity of the game files through the game's built-in verification tool or through a third-party tool such as Steam's file verification feature. This process checks the game files for any corruption or inconsistencies and replaces any damaged files.
Another potential solution is to update the graphics drivers to the latest version. Outdated graphics drivers can cause compatibility issues with the game, leading to errors such as the "unable to open BigFile000.top" error. Players can check for updates to their graphics drivers through the manufacturer's website or through a driver update tool. rise of the tomb raider unable to open bigfile000 top
In addition to these troubleshooting steps, players can also try disabling any overlay software or mods that may be interfering with the game. Sometimes, overlay software or mods can cause conflicts with the game, leading to errors such as this one.
If none of these troubleshooting steps resolve the issue, players may need to seek further assistance from the game's developers or from a technical support specialist. The game's developers may have additional troubleshooting steps or patches available to resolve the issue.
In conclusion, the "Rise of the Tomb Raider unable to open BigFile000.top" error can be a frustrating issue for players, but it can often be resolved through troubleshooting steps such as verifying game files, updating graphics drivers, and disabling overlay software or mods. By trying these steps, players can get back to enjoying the game and exploring the world of Lara Croft.
Some potential solutions include:
Causes of the error:
Right-click RiseOfTheTombRaider.exe → Properties → Compatibility → Run this program as an administrator. The "bigfile" error looks scary, but it’s rarely
This is the first and most effective fix for 70% of users. Verification scans every bigfile and redownloads only the corrupted pieces.
For Steam:
For Epic Games Store:
If you have the game installed in a folder that is influenced by a username with special characters, moving the game to a neutral folder often fixes the issue immediately.
The "Rise of the Tomb Raider unable to open bigfile000 top" error is terrifying to see because it sounds like deep game engine corruption. In reality, it is almost always a simple file integrity issue or a mod conflict.
For 95% of players, Solution 1 (Verify Game Files) or Solution 2 (Disable Antivirus) will solve the problem instantly. The remaining solutions exist for edge cases involving external drives or memory settings. Updated: December 2025 — tested on Steam version 1
Do not let a single corrupted archive stop you from exploring the Prophet’s Tomb. Follow these steps, and within 30 minutes, Lara Croft will be scaling icy cliffs and fighting Trinity soldiers without a single error message.
Final tip: 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.
Happy raiding, adventurer.
Fix: "Unable to Open bigfile000.tiger" in Rise of the Tomb Raider
If you're seeing the dreaded "Unable to open bigfile000.tiger" error when trying to launch Rise of the Tomb Raider
, you aren't alone. This error usually points to a corruption in the game's primary data archive or a permissions issue preventing the game from reading its own files. Follow these steps to get back to raiding tombs. 1. Verify Game Integrity (The Quickest Fix)
The most common cause is a corrupted file during a download or update. Steam and other launchers have built-in tools to find and replace these broken bits automatically. Game doesn´t start. bigfile.000.tiger missing. OSX, eGPU
This report is structured for IT support, game developers, or advanced users troubleshooting the error.
