JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/jszip/2.5.0/jszip.min.js"></script>
<script src="https://cdn.rawgit.com/bpampuch/pdfmake/0.1.18/build/pdfmake.min.js"></script>
<script src="https://cdn.rawgit.com/bpampuch/pdfmake/0.1.18/build/vfs_fonts.js"></script>
<link rel="stylesheet" href="https://cdn.datatables.net/1.10.15/css/jquery.dataTables.min.css">
<script src="https://cdn.datatables.net/1.10.15/js/jquery.dataTables.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.22.2/moment.js"></script>
<script src="https://cdn.datatables.net/buttons/1.5.3/js/buttons.html5.min.js"></script>
<link rel="stylesheet" href="https://cdn.datatables.net/buttons/1.5.3/css/buttons.dataTables.min.css">
<script src="https://cdn.datatables.net/buttons/1.5.3/js/dataTables.buttons.min.js"></script>
<table id="example">
<thead>
<tr>
<th>Name</th>
<th>Reg.number</th>
<th>Limit</th><th>Time</th>
</tr>
</thead>
<tbody>
<tr><td>Jon</td><td>123455665</td><td>100 000.00</td><td>01:10:20</td></tr>
<tr><td>Foo</td><td>123423423</td><td>55 000.00</td><td>02:11:43</td></tr>
<tr><td>Alex</td><td>123423423</td><td>75 000.00</td><td>03:44:56</td></tr>
</tbody>
</table>

JavaScript

$('#example').DataTable( {
  dom: 'Bfrtip',
  buttons: [{
    filename: 'test',
    extend: 'excelHtml5',
    exportOptions: {
      format: {
         body: function ( data, row, column, node ) {
            switch (column) {
              case 3 : 
                return moment(data, 'HH:MM:SS').format('H:MM:SS')
                break
              default :
                return data
                break
             }
          }
        }
     } 
  }],
});