Datatables csv / excel export button not appearing

[afridy]

Hi folks,

Tried hard and hard. no luck. wasted an entire day on google.
my data table buttons only showing print and pagelength, but not excel or csv.

declarations

<!--Data Table Declarations-->
<link rel="stylesheet" type="text/css" href="//cdn.datatables.net/1.10.19/css/jquery.dataTables.min.css">
<link rel="stylesheet" href="https://cdn.datatables.net/buttons/1.4.1/css/buttons.dataTables.min.css">
<link rel="stylesheet" href="https://cdn.datatables.net/tabletools/2.2.4/css/dataTables.tableTools.min.css">


<script src="https://cdn.datatables.net/buttons/1.5.2/js/buttons.flash.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jszip/3.1.3/jszip.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/pdfmake/0.1.36/pdfmake.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/pdfmake/0.1.36/vfs_fonts.js"></script>


<script src="https://cdn.datatables.net/buttons/1.5.2/js/buttons.html5.min.js"></script>
<script src="https://cdn.datatables.net/buttons/1.5.2/js/buttons.print.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.js"></script>
<script src="https://cdn.datatables.net/1.10.16/js/jquery.dataTables.min.js"></script>
<script src="https://cdn.datatables.net/buttons/1.4.2/js/dataTables.buttons.js"></script>
<script src="https://cdn.datatables.net/buttons/1.4.2/js/buttons.print.js"></script>
<link rel="stylesheet" href="https://cdn.datatables.net/1.10.16/css/jquery.dataTables.min.css">
<link rel="stylesheet" href="https://cdn.datatables.net/buttons/1.4.2/css/buttons.dataTables.min.css">
<script src="https://cdn.datatables.net/tabletools/2.2.4/js/dataTables.tableTools.min.js"></script>
<!--/Data Table Declarations-->

code

<script>
$(document).ready(function() {
    $('#example').DataTable( {
        "dom": 'Bfrtip',
		"buttons": ['csv', 'excel', 'pdf', 'print','excel','pageLength'], 	
		"pageLength": 100,
		"processing": false,
        "sAjaxSource":"data.php",		
    });
});

</script>

[m_hutley]

well for starters you’ve put excel in your array twice.

I’m somewhat confused, as it feels like you’re loading entirely too many javascript files, from different versions of the buttons …
<script src="https://cdn.datatables.net/buttons/1.5.2/js/buttons.print.min.js">
<script src="https://cdn.datatables.net/buttons/1.4.2/js/buttons.print.js"
Do these scripts not clash with each other? Which one are you SUPPOSED to be loading?