Going from sketchup pro 2015 to 2014

I just purchased a student Sketchup pro 2015 but my computer can not hold the file and I need sketchup pro 2014 instead. Does anyone know if there is a way to downgrade without having to purchase another license?

How can your computer not hold the file? It is about 110 MB. SketchUp 2014 isn’t significantly smaller. Maybe we should find the source of the problem first?

This is a job for the SketchUp Customer Support department. Call them during business hours or email them.

Also, SketchUp 2015 can SaveAs files back to version 2014 (and even earlier versions.)