EXCEL output format XSL-FO template - output in across multiple worksheets

Hi
 
We want to format a XSL-FO template to generate output in EXCEL format
across multiple worksheets.
 
As such right now whenever we format a XML payload with a XSL-FO
template, the output is rendered on a single worksheet EXCEL file.
 
Any help in this regard is appreciated.
 
Thank
sunder