[Zope] COMObject product question

Hi, Has anybody used the COMObject product package much? I have been trying on and off to put data into an existing Excel template and display the result within the browser. I can do it using an external method to populate the spreadsheet and save it, then using the LocalFS product to retrieve the file and return it to the browser. This is all fine, but I was wondering if there wasn't a better way. Does anyone know if it's possible to return the Excel file to Zope as a COM object (without having to save the file to the local filesystem of the server) and just sent it to the browser as binary content, setting the content type. Does the COMObject product work like this? Thanks, Micheál Micheál Healy Engitech Ltd. 01 6204 516