Ok, newbie question time starts!

I have searched the manual and have looked at different sites and forums, but, can't find the answer. So I ask...

What files types can be used in V6 Pro?

And, I also say...Greetings, I'm new to Vue, I got Vue5 Easel as a gift from a secret santa this year and in less then 4 days upgraded to Vue 6 Pro.  This program rocks!!