           },
                {
                    extend: 'excelHtml5',
                    text: 'Download Excel <i class="fas fa-file-excel ml-2"></i>',
                    titleAttr: 'Download Excel',
                    className: 'btn btn-success ml-2',
                    exportOptions: {
                        columns: [ 0, 1, 2, 3 ,4 ]
                    } 
                },
                {
                    extend: 'pdfHtml5',
                    text: 'Download PDF <i class="fas fa-file-p