How to export reports in xlsx format  in crystal report 12.0

Hi I am using crystal reports 12.0, but could not be able to export the report in office 2007-2010 format (xlsx). can any one let me know if there is any service pack or fix available for this ?
Edited by: Arbi.c on Aug 3, 2010 12:13 PM

Hi,
Thanks for the information about the beta build. Can i get that build ? if yes please tell me the link, because the major problem is that we are dealing more than 65k records which is not supported by excel-2003.
Thank You,
Arbi

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                        IReportSource reportSource = (IReportSource)rptSrcFactory.createReportSource(reportName,request.getLocale());
                        Boolean b1 = new Boolean(messageBundle.getString("Toggle.Group.TreeButton"));
                        Boolean b2 = new Boolean(messageBundle.getString("Has.ExportButton"));
                        Boolean b3 = new Boolean(messageBundle.getString("Has.SearchButton"));
                        Boolean b4 = new Boolean(messageBundle.getString("Display.GroupTree"));
                        Boolean b5 = new Boolean(messageBundle.getString("Has.Logo"));
                        Boolean b6 = new Boolean(messageBundle.getString("Display.Toolbar"));
                        crystalReportPageViewer.setHasToggleGroupTreeButton(true);
                        crystalReportPageViewer.setHasExportButton(true);
                        crystalReportPageViewer.setHasSearchButton(false);
                        crystalReportPageViewer.setDisplayGroupTree(false);
                        crystalReportPageViewer.setHasLogo(false);
                        crystalReportPageViewer.setOwnPage(true);
                        crystalReportPageViewer.setOwnForm(true);
                        crystalReportPageViewer.setReportSource(reportSource);
                        crystalReportPageViewer.processHttpRequest(request, response, application, null);
                        IReportSource reportSource = (IReportSource)rptSrcFactory.createReportSource(reportName,request.getLocale());
                        //CharacterSeparatedValuesExportFormatOptions csvOptions = new CharacterSeparatedValuesExportFormatOptions();
                        ExportOptions exportOptions = new ExportOptions();
                        //exportOptions.setExportFormatType(ReportExportFormat.characterSeparatedValues);
                        //exportOptions.setExportFormatType(ReportExportFormat.PDF);     
                        exportOptions.setExportFormatType(ReportExportFormat.characterSeparatedValues);
                        exporter.setReportSource(reportSource);
                        exporter.setExportOptions(exportOptions);
                   //exporter.setExportAsAttachment(true);
                        exporter.processHttpRequest(request, response, application, null);
                   // ****** END CONNECT CRYSTALREPORTPAGEVIEWER SNIPPET ****************          
         } catch (ReportSDKExceptionBase e) {
             out.println(e);
    %>
    if i want to add custom button where to add

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