Bigfile001tiger Tomb Raider 20 Better ~upd~ Today

“Tomb Raider 20 Better” most likely refers to mods and tweaks that make the of the 2013 reboot or Rise look/perform better than the vanilla release.

Lara crouched in the flickering light of a terminal deep within a Research Base. On the screen, a corrupted archive labeled pulsed with a rhythmic, digital heartbeat. To the Solarii cultists, it was just junk data. To Lara, it was the key to a "better" understanding of the island's atmospheric barriers. bigfile001tiger tomb raider 20 better

A mod for the first Tomb Raider game that includes updated textures, models, and more. “Tomb Raider 20 Better” most likely refers to

So “bigfile001tiger tomb raider 20 better” translates to: To the Solarii cultists, it was just junk data

To replace textures (e.g., Lara’s face, weapons, environments), modders extract or override content inside these bigfiles. This is where the “tiger” part of your search string comes from — possibly a typo or a filename like bigfile.001.tiger .