The "Unable to open bigfile000" error in Rise of the Tomb Raider
typically indicates that the game's largest archive file is either missing, corrupted (often due to "bitrot"), or being blocked by system permissions 1. Verify Game Integrity
The most common and effective fix is using your launcher's built-in repair tool to replace corrupted data. : Right-click on the game in your Properties Local Files
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
The error "unable to open bigfile000.tiger" in Rise of the Tomb Raider
typically points to corrupted or missing core game data. This specific file acts as a massive archive containing a significant portion of the game's assets. 1. Verify Integrity of Game Files (Most Likely Fix)
The fastest way to resolve this is to let your game launcher scan for and replace the corrupted bigfile000.tiger. On Steam:
Open your Steam Library and right-click Rise of the Tomb Raider. Select Properties > Installed Files (or Local Files).
The "Unable to open bigfile.000.tiger" error in Rise of the Tomb Raider rise of the tomb raider unable to open bigfile000 top
typically indicates that the game cannot access its main data archive, usually due to file corruption, insufficient permissions, or security software interference. Quick Fixes to Try First Verify Game Files : This is the most reliable fix. In , right-click the game, go to Properties > Installed Files (or Local Files), and select Verify integrity of game files
. Steam will automatically re-download any missing or corrupted "bigfile" parts. Run as Administrator
: Right-click the game’s executable or launcher and select Run as administrator
to bypass permission issues that might prevent the game from reading large archive files. Antivirus Exceptions : Sometimes security software flags the
files as false positives. Add the game’s installation folder to your antivirus Exclusion List Check Disk Space
: Ensure your drive has enough free space; "bigfile" errors can occur if the game doesn't have room to expand temporary data. Rise of the Tomb Raider (PC) - Review Draft Rating: 8.5/10 (Highly Recommended)
How to FIX Rise of the Tomb Raider Not Launching/Not Starting
The Mysterious Case of the Unopenable Bigfile000.top
It had been months since Lara Croft's adventures in Siberia, and she had finally returned to her humble abode in London. The memories of her perilous journey to uncover the secrets of the legendary Divine Source still lingered in her mind. However, a new challenge was about to emerge, one that would test her skills as an archaeologist and problem solver.
Lara had received a cryptic message from an anonymous source, hinting at the existence of a long-lost artifact hidden deep within the English countryside. The message was brief, but it was enough to spark Lara's curiosity. She gathered her gear and set out to uncover the truth.
As she arrived at the designated location, Lara noticed an old, abandoned mine on the outskirts of a small village. The mine seemed to have been untouched for decades, and Lara suspected that this might be the place she was looking for. She cautiously made her way inside, her trusty bow and arrow at the ready. The "Unable to open bigfile000" error in Rise
Upon entering the mine, Lara stumbled upon an ancient computer terminal. It was an old system, but it seemed to be still operational. As she approached the terminal, she noticed a large file labeled "Bigfile000.top" on the screen. The file seemed to be the key to unlocking the secrets of the mine, but to Lara's frustration, she was unable to open it.
The error message "Unable to open Bigfile000.top" flashed on the screen, and Lara was stumped. She tried to access the file from different angles, but it seemed to be encrypted or corrupted in some way. Lara's mind began to wander; she thought about all the possible solutions she could try. She remembered a similar problem she had encountered during her adventures in the jungle, where she had to use her knowledge of ancient languages to decipher a cryptic message.
As she pondered, Lara noticed a small, hidden compartment in the terminal. Inside, she found a cryptic note that read:
"The eyes that see are not the ones that look, But the ones that understand the code of the ancients."
Lara realized that the note was hinting at an ancient cipher, one that she had studied during her time at university. She quickly got to work, applying the cipher to the file. After several minutes of intense focus, the file finally opened, revealing a 3D scan of the mine's tunnel system.
The scan showed a hidden path, previously invisible to Lara. The path seemed to lead to a deeper part of the mine, and Lara suspected that this was where the artifact was hidden. With renewed excitement, she set off towards the hidden path, ready to face whatever challenges lay ahead.
As she ventured deeper into the mine, Lara encountered treacherous terrain, ancient traps, and hidden dangers. But with her wit, courage, and determination, she overcame each obstacle, drawing closer to her goal.
Finally, after what seemed like hours of navigating the mine, Lara stumbled upon a hidden chamber. Inside, she found the artifact – an ancient relic of immense historical significance. As she gazed upon the relic, Lara felt a sense of pride and accomplishment; she had solved the mystery of the unopenable Bigfile000.top and uncovered a piece of history.
The artifact, it turned out, was a crucial piece of evidence that would change the course of history. Lara's discovery would go on to rewrite the books on ancient civilizations, and her name would become synonymous with archaeological excellence.
And as for the mysterious Bigfile000.top, it remained a testament to Lara's ingenuity and determination – a reminder that sometimes, the greatest challenges are the ones that lead to the greatest discoveries.
The error "Unable to open bigfile.000!" in Rise of the Tomb Raider typically indicates that the game cannot access its primary data archives. This is often caused by corrupted installation files, antivirus interference, or insufficient administrative permissions. Quick Fixes to Try First Delete the file bigfile
Restart Your Computer: A simple reboot can clear temporary file locks that might be preventing access to bigfile.000. Verify Game Files:
Steam: Right-click the game in your Library > Properties > Installed Files > Verify integrity of game files.
Epic Games: Click the three dots next to the game > Manage > Verify.
Run as Administrator: Navigate to the game's installation folder, right-click ROTTR.exe, and select Run as administrator. Advanced Troubleshooting Steps 1. Add Antivirus Exceptions
bigfile.000 from the game folder (back up first)If your game is installed in a system-protected location like C:\Program Files, Windows permissions can get aggressive.
C:\Games\.C:\Program Files (x86)\Steam\steamapps\common\Rise of the Tomb Raider\ or equivalent.bigfile000.tiger after successful verification (approx. 1–5 GB)..tiger files without proper tools.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 "unable to open bigfile000.tiger" error in Rise of the Tomb Raider is a critical failure often caused by data corruption, restrictive security settings, or resource constraints. Resolving this issue typically involves verifying game file integrity through Steam or Epic Games, adjusting administrator permissions, and updating GPU drivers. For a community-driven technical discussion on this specific error, visit this Reddit thread.
Sometimes, aggressive antivirus software (like Windows Defender, Norton, or Kaspersky) mistakenly flags bigfile000.tiger as a threat because it is a packed archive file. If the antivirus quarantines this file, the game cannot open it.
Certain programs can block access to .bigfile archives:
Antivirus/Firewall – Temporarily disable or add the game folder to exclusions:
C:\Program Files (x86)\Steam\steamapps\common\Rise of the Tomb RaiderC:\Program Files\Epic Games\RiseOfTheTombRaiderOverlay apps (Discord, MSI Afterburner, GeForce Experience) – Disable overlays temporarily