How to create scrolling graph from input values?

Hi i’m new here, I’m trying to build a new concept for an interface inside an operating theatre - What I was trying to do (to start with) was make a line dynamically draw itself from a set of values (which I have in an excel spreadsheet) - gradually revealing itself over time like in the screens you see on medical drama’s. How would I go about doing this with AS3?

Thanks for your time,

marksy

PS Using CS4 if thats relevant