mix and export issue

I made a soundtrack in Cubase 7 using two tracks. Fading in and out of five songs that I’m using on a slide show for my high school reunion. Now I’ve got to get the thing out of Cubase onto my MacBook Pro so I can add it to the slide in iMovie so I’ll have a slide show with music. Not sure what to do next. Do I flatten or mix the two tracks together to make one track? And how do I get it out in a format that will work with iMovie. Appreciate any help. I’m really new to Cubase. Thanks!

Go to File/Export Audio Mixdown. Select the format you want to export to and a path to export it to.