I do not know any automated way. But you can simply copy them over. Simply look at the model and select all cells. Afterwards use right click copy and paste it to excel.
Not a nice way but it should be well suited for your task.
Edit: If you need an automated way, have a look in this thread: http://rapid-i.com/rapidforum/index.php?topic=2081.0
It uses the outdated reporting extension but it should work.