How to load Cubase 5.0.1 .cpr file into Cubase LE 5.1.1

I want to send a Cubase 5.0.1 .cpr file to a friend who has Cubase LE 5.1.1 so he can load it and work on it. His program says it can’t load it. Is there a way to make this work? Thanks to anyone who can help. Loyd

Normal way would be to convert everything into Audio, then mixdown all stems from the same starting point and send them.
That’ll work for any DAW.