How to Export to excel with filename using javascript.

Question

 

<asp:LinkButton ID="btnexport" class="btn btn-sm btn-primary"><i class="fa fa-download" ></i>&nbsp;EXPORT</asp:LinkButton>

<script type="text/javascript">

$("[id$=btnexport]").click(function (e) {

window.open('data:application/vnd.ms-excel,' + encodeURIComponent($('#divrkapreport').html()));

e.preventDefault();

});

</script>