2014 version files to 2012 - How to save sketch?

Hello guys,

I'm working on SW2014 and I want to send a part to a customer who has SW2012.

I know he won't be able to edit features if I send it parasolid format, what I want is for him to be able to see a sketch I created over the part that shows him future edits or what not.

Is there a way to send him a format where he can see that sketch over that part?

Thanks!

SolidworksImport export