Can I get my GameData files back for my Star Wars Jedi Knight: Jedi Academy Game?

I accidentally deleted all of my GameData files for disc two of my jedi Knight: Jedi Academy game, and I cannot seem to find them. I would like to know if I can get them back and how.

While this game may use OpenGL, your question isn’t really about OpenGL’s use in that game, or how the game’s rendering system interacts with your OpenGL drivers, or anything of that nature.