Saving excel file using HSSF api

I am using HSSF api to download an excel file. But the end users are not able to save the file. Some of them do not get the popup file download window so that they can choose to open or save. Is there a setting in the browser which shows up the window? The users may have different versions of excel on their pcs.
How to show the excel application menu 'file' so that users can save this file?
Any help would be appreciated.

Prakash,
          I have followed your weblog and set the content dispostion.
HttpServletResponse res = request.getServletResponse(true);
               try {
                    res.setContentType("application/vnd.ms-excel");
                    res.setHeader("Content-disposition", "inline; filename=report.xls");
                    wb.write(res.getOutputStream());
               } catch (Exception e) {
                    e.printStackTrace();
When I test this on my pc, I get file download window and I can choose 'open' or'save'. I also have tested this on some of my collegues PCs successfully. But the some of the end users are not getting this window.
when the same is file is downloaded by running an asp page the enire MSExcel application with standard tool bar and menus(file edit etc..) is showing up.
Why is it not poosible to get the same result using HSSF api?

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Prakash,
          I have followed your weblog and set the content dispostion.
HttpServletResponse res = request.getServletResponse(true);
               try {
                    res.setContentType("application/vnd.ms-excel");
                    res.setHeader("Content-disposition", "inline; filename=report.xls");
                    wb.write(res.getOutputStream());
               } catch (Exception e) {
                    e.printStackTrace();
When I test this on my pc, I get file download window and I can choose 'open' or'save'. I also have tested this on some of my collegues PCs successfully. But the some of the end users are not getting this window.
when the same is file is downloaded by running an asp page the enire MSExcel application with standard tool bar and menus(file edit etc..) is showing up.
Why is it not poosible to get the same result using HSSF api?

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Prakash,
          I have followed your weblog and set the content dispostion.
HttpServletResponse res = request.getServletResponse(true);
               try {
                    res.setContentType("application/vnd.ms-excel");
                    res.setHeader("Content-disposition", "inline; filename=report.xls");
                    wb.write(res.getOutputStream());
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When I test this on my pc, I get file download window and I can choose 'open' or'save'. I also have tested this on some of my collegues PCs successfully. But the some of the end users are not getting this window.
when the same is file is downloaded by running an asp page the enire MSExcel application with standard tool bar and menus(file edit etc..) is showing up.
Why is it not poosible to get the same result using HSSF api?

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Please gothru the code below.
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
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<%@page pageEncoding="UTF-8"%>
<html>
<head>
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mainmenu
</html:form>
</body>
</html>
<%
String contentType = request.getContentType();
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//out.println("<br>now 3"+pos);
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fileOut.write(dataBytes, startPos, (endPos - startPos));
fileOut.flush();
fileOut.close();
session.setAttribute("fil", saveFile);
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%>
<script type="text/javascript" >
function DisablingBackFunctionality()
var URL;
var i ;
var QryStrValue;
URL=window.location.href ;
i=URL.indexOf("?");
QryStrValue=URL.substring(i+1);
if (QryStrValue!='X')
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Please let me know the result as soon as possible. Its my very urgent.
Thanking Yu,
Muthu Kumar.R

No.
Mylenium

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