Issue with POI - HSSF

[Dasmeet S Ahluwalia]

Hi,

I am facing a problem with HSSFWorkbook...

Actually i am using this POI for handling Export functionality in JSP 
reports. 
I have a link "Export" clicking which i get the data and export it to 
excel file. For this I am using ServletOutputStream.

the pseudocode is....
        res.setContentType("application/octet-stream");
        res.setHeader("Content-Disposition","attachment; filename=\"abc.xls\""); 
        ServletOutputStream sOutStream = res.getOutputStream();
        .
        .
        .
        .
        HSSFWorkbook wbExlFile = new HSSFWorkbook();
        wbExlFile.write(sOutStream);

Everything works fine....the problem lies in display of "File Download 
Popup". Somehow it is displayed twice.
Can someone help me to figure out why this is happening?

Thanks in advance.

Regards,
Dasmeet Singh.