allow users to extract these archives, modify the contents, and repack them to see "new" versions of Lara Croft in-game. Safe Recovery Methods
Here are some of the most popular mods that transform the game, all of which require interaction with bigfile.000 . Remember, using the method is the safest way to install them.
If you are running the game from an original CD-ROM or an offline installer, you must source the file manually. Step 1: Secure a Clean Archive File