title: I want to change data table button name
body: <p>I have <code>excel</code> button of data table and I want to change name of that button.
  I am trying like this</p>
  
  <pre><code>$(document).ready(function() {
    $('#loading_sheet_table').DataTable({
      "paging": false,
      dom: 'Bfrtip',
      buttons: [
        {
          extend: 'excel',
          name: 'export to excel'
        }
      ]
    });
  });
  </code></pre>
  
  <p>But name not change and I want to add icon after name.</p>
  
  <pre><code>&lt;i class="fa fa-file-excel-o" aria-hidden="true"&gt;&lt;/i&gt;
  </code></pre>