[Zope] Can anyone point me in the right direction.

I've got a web application that allows users to access their GL information. I'd like to add a button to the form that allows them to take the current page and download it into Excel. I've worked with Excel automation quite a bit but I don't know what kind of package I'd need to use to allow me to control Excel from Python. After I create the Excel file, I need to download it to the client computer. Any ideas on the best way to go about that? Thanks. Joe Goldthwaite