Question re: Powerpoint

Hi there.  I'm totally new to Articulate and I find myself wondering (the first of many questions, I'm sure) about using Articulate on a previously-created Powerpoint presentation.  I've read that Studio is the primary Articulate tool designed to work with Powerpoint, but I've also read that Powerpoint can also interact with Storyline.  I've got a Powerpoint presentation that I'd like to give an Articulate makeover, so should I be using Studio for that?  This will be my first foray into Articulate.  Thanks!