[Zope] Sending results of query to Excel

I'm writing a data-mining application and I'd like to use Zope as a front end. Using Zope the user can query tables and see the data presented on-screen. Is there any way to pass that output to an Excel spreadsheet ? I feel I should be able to write an external method to do it so I'd be interested to know if anyone else has already solved the problem. Thanks in advance Richard