How do I go about doing this? I have my tracks mixed but I don't know how to make a .wav file out of them all.

you have to bounce them ,if you go to I think its click on file at the top of the page and I think you get the option to bounce ,it will then give you the option of where to save your mix and what format ie: wav aiff or mp3 if you hve that option

hope this helps

army boy