JSFiddle - React, Tailwind, and code Playground

HTML

<button id="clickExcel">Download As Excell</button>
<div id="dtltbl">
<table>
<tr>
<td>Here</td><td>Is</td><td>Data</td>
</tr>
<tr>
<td>Here</td><td>Is</td><td>More</td>
</tr>
</table>
</div>

JavaScript

$( "#clickExcel" ).click(function() {  
  var dtltbl = $('#dtltbl').html();    
  window.open('data:application/vnd.ms-excel,' + $('#dtltbl').html());
});