I didn't make it!
Ok I wanta start moding but where can I find the default oblivion models. Where are they in my oblivion folder?
Do you mean you want to access the game files so you can edit them? or that you want to get to the .bsa files that are hidden in the Oblivion folder? If the former, simply go to the top of the screen and click the open folder button, then double-click the Oblivion Master file. If the latter, you need a tool for it. I suggest the Oblivion Mod Manager. That will let you unpack the .bsa files.