I can’t believe that I can’t figure this out, since I did my first submission to the App Store just a few weeks ago. (It got rejected, no big surprise, so here is my revision to fix their objections.)
The problem is that when I build the new app in Corona, all I get is an .app file. The Application Loader apparently wants a .zip file. Do I just compress the NewApp.app file into NewApp.app.zip, or is there some smarter way to do this?