EXPORT Data to XLS and HTML

 Hi everybody,

I created JasperReport, its integrated with adempiere.I genarated report from adempiere.
In JasperViewer has default view is PDF format,
But i want Export Data PDF to XLS and HTML.
When i Export XLS its displaying empty XLS Sheet.
How can i get data with Excel Sheet.

Plz give me solution
Thanks in advance
Srikanth