title: Datatables.net: Set column width when exporting to XLSX
body: <p>i have datatables table and i want export content of this table.
  Because some headers are so long, i must set specific text of headers. All works fine, but columns with customized text are still so long. </p>
  
  <pre><code>customize: function( xlsx ) {
                  var sheet = xlsx.xl.worksheets['sheet1.xml'];
  
                  // Exported excel custom properties
                  $('row:first c', sheet).attr( 's', '7' );
  
                  $('c[r=B1] t', sheet).text( 'Date' ).;
                  $('c[r=C1] t', sheet).text( 'Type' );
                  $('c[r=E1] t', sheet).text( 'Subject' );
              }
          }]
  </code></pre>
  
  <p>Pls, is possibe set specific width for columns with "new" - shorter texts?
  Thanks for any answers.</p>