<form id="formexcel" action="" method="post" name="formexcel">
    <input type="hidden" name="exceldata" id="exceldata" value="" />
</form>

function exportDivToExcel() {
    document.formexcel.exceldata.value=$('#htmlbody').html();
    $("#lblReportForPrint").html("Procurement operation review report");
    document.formstyle.method='POST';
    document.formstyle.action='${pageContext.servletContext.contextPath}/generateexcel';
    document.formstyle.submit();
}

StringBuilder exceldata = new StringBuilder();
exceldata.append(request.getParameter("exceldata"));
ServletOutputStream outputStream = response.getOutputStream();
response.setContentType("application/vnd.ms-excel");
response.setCharacterEncoding("UTF-8");
response.setHeader("Content-Disposition", "attachment;filename="exportexcel.xls"");
outputStream.write(exceldata.toString().getBytes());

var resultFromTable2CSV = $('#table-id').table2CSV({delivery:'value'});

var blob = new Blob([resultFromTable2CSV], {type: "text/csv;charset=utf-8"});

saveAs(blob, 'desiredFileName.csv');

<script src="http://ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script>

<script src="dist/jquery.table2excel.min.js"></script>

$("#yourHtmTable").table2excel({
    exclude: ".excludeThisClass",
    name: "Worksheet Name",
    filename: "SomeFile" //do not include extension
});

$("button").click(function(){
    $("#table2excel").table2excel({
    // exclude CSS class
    exclude: ".noExl",
    name: "Excel Document Name"
    });
});