i`ve been ripping the game viva piñata for PC and viewing the files i have encountered the shader folder and data that are WAD i`ve been trying to investigate on how to open them and decompressed them but i have only stumbled upon superficial knowledge about it for example at the time of the making ...

how did zabana and bigchillghost get the models and textures from the game could someone say if it depends with a specific program??