Excel creation using jsp

Hi,

I want to open up an excel sheet when the user clicks on a link.
The excel contains data from back end.I am successful in creating excel sheet using javascript.
I first created a hidden table and painted the table with entire data from back end.Then I copied the data in the table to the Excel sheet.But it is taking a lot of time for the excel sheet to open up.
Can anybody help me on how to create the excel application using jsp without using javascript?

Thanks
Vinod.V.P.

Here is an API that you can use to create and modify excel workbooks from Java.

http://jexcelapi.sourceforge.net/

I've used it once or twice and found it fairly easy to use.