export.php

<script>
function exportTableToExcel(tableID, filename = '') {
            var downloadLink;
            var dataType = 'application/vnd.ms-excel';
            var tableSelect = document.getElementById(tableID);
            var tableHTML = tableSelect.outerHTML.replace(/ /g, '%20');

            // Specify file name
            filename = filename ? filename + '.xls' : 'No Entry Point Status.xls';

            // Create download link element
            downloadLink = document.createElement("a");

            document.body.appendChild(downloadLink);

            if (navigator.msSaveOrOpenBlob) {
                var blob = new Blob(['\ufeff', tableHTML], {
                    type: dataType
                });
                navigator.msSaveOrOpenBlob(blob, filename);
            } else {
                // Create a link to the file
                downloadLink.href = 'data:' + dataType + ', ' + tableHTML;

                // Setting the file name
                downloadLink.download = filename;

                //triggering the function
                downloadLink.click();
            }
        }
        </script>