Powerpoint as you know is a presentation creation program.
As far as I know it is not possible to import working spreadsheets int
it.
However you can import screenshots.
To do this simply select the sheets you wish to show, and click prin
screen "Ptr Scr", normally found next to the scroll lock button on you
keyboard.
Open Powerpoint onto a new or existing slide and "Paste" the image ont
the slide.
You could then create more slides to demonstrate the functionality o
the spreadsheet.
Hope this helps
Celtic_Avenge