OK. We take it one step at a time.
First Step: After running your script, do you end up with an Excel spreadsheet file that has the data you want to chart in it? If not, did you get any errors or messages from your script?
A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James
My blog: Imperial Deltronics