Export html table data to Excel using JavaScript /

Question

I have a HTML table in velocity template. I want to export the html table data to excel using either java script or jquery, comatibale with all browser. I am using below script

<script type="text/javascript">
function ExportToExcel(mytblId){
       var htmltable= document.getElementById('my-table-id');
       var html = htmltable.outerHTML;
       window.open('data:application/vnd.ms-excel,' + encodeURIComponent(html));
    }
</script>

This script works fine in Mozilla Firefox,it pops-up with a dialog box of excel and ask for open or save options. But when I tested same script in Chrome browser it is not working as expected,when clicked on button there is no pop-up for excel. Data gets downloaded in a file with "file type : file" , no extension like .xls There are no errors in chrome console.

Jsfiddle example :

http://jsfiddle.net/insin/cmewv/

This works fine in mozilla but not in chrome.

Chrome browser Test Case :

First Image:I click on Export to excel button

and result :

Answer 1

My version of @sampopes answer

function exportToExcel(that, id, hasHeader, removeLinks, removeImages, removeInputParams) {
if (that == null || typeof that === 'undefined') {
    console.log('Sender is required');
    return false;
}

if (!(that instanceof HTMLAnchorElement)) {
    console.log('Sender must be an anchor element');
    return false;
}

if (id == null || typeof id === 'undefined') {
    console.log('Table id is required');
    return false;
}
if (hasHeader == null || typeof hasHeader === 'undefined') {
    hasHeader = true;
}
if (removeLinks == null || typeof removeLinks === 'undefined') {
    removeLinks = true;
}
if (removeImages == null || typeof removeImages === 'undefined') {
    removeImages = false;
}
if (removeInputParams == null || typeof removeInputParams === 'undefined') {
    removeInputParams = true;
}

var tab_text = "<table border='2px'>";
var textRange;

tab = $(id).get(0);

if (tab == null || typeof tab === 'undefined') {
    console.log('Table not found');
    return;
}

var j = 0;

if (hasHeader && tab.rows.length > 0) {
    var row = tab.rows[0];
    tab_text += "<tr bgcolor='#87AFC6'>";
    for (var l = 0; l < row.cells.length; l++) {
        if ($(tab.rows[0].cells[l]).is(':visible')) {//export visible cols only
            tab_text += "<td>" + row.cells[l].innerHTML + "</td>";
        }
    }
    tab_text += "</tr>";
    j++;
}

for (; j < tab.rows.length; j++) {
    var row = tab.rows[j];
    tab_text += "<tr>";
    for (var l = 0; l < row.cells.length; l++) {
        if ($(tab.rows[j].cells[l]).is(':visible')) {//export visible cols only
            tab_text += "<td>" + row.cells[l].innerHTML + "</td>";
        }
    }
    tab_text += "</tr>";
}

tab_text = tab_text + "</table>";
if (removeLinks)
    tab_text = tab_text.replace(/<A[^>]*>|<\/A>/g, "");
if (removeImages)
    tab_text = tab_text.replace(/<img[^>]*>/gi, ""); 
if (removeInputParams)
    tab_text = tab_text.replace(/<input[^>]*>|<\/input>/gi, "");

var ua = window.navigator.userAgent;
var msie = ua.indexOf("MSIE ");

if (msie > 0 || !!navigator.userAgent.match(/Trident.*rv\:11\./))      // If Internet Explorer
{
    myIframe.document.open("txt/html", "replace");
    myIframe.document.write(tab_text);
    myIframe.document.close();
    myIframe.focus();
    sa = myIframe.document.execCommand("SaveAs", true, document.title + ".xls");
    return true;
}
else {
    //other browser tested on IE 11
    var result = "data:application/vnd.ms-excel," + encodeURIComponent(tab_text);
    that.href = result;
    that.download = document.title + ".xls";
    return true;
}
}

Requires an iframe

<iframe id="myIframe" style="opacity: 0; width: 100%; height: 0px;" seamless="seamless"></iframe>

Usage

$("#btnExportToExcel").click(function () {
    exportToExcel(this, '#mytable');
});

Answer 2

You can use a library like ShieldUI to do that.

It supports exporting to both XML and XLSX widely-used Excel formats.

More details here: http://demos.shieldui.com/web/grid-general/export-to-excel

Answer 3

This could help

function exportToExcel(){
var htmls = "";
            var uri = 'data:application/vnd.ms-excel;base64,';
            var template = '<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns="http://www.w3.org/TR/REC-html40"><head><!--[if gte mso 9]><xml><x:ExcelWorkbook><x:ExcelWorksheets><x:ExcelWorksheet><x:Name>{worksheet}</x:Name><x:WorksheetOptions><x:DisplayGridlines/></x:WorksheetOptions></x:ExcelWorksheet></x:ExcelWorksheets></x:ExcelWorkbook></xml><![endif]--></head><body><table>{table}</table></body></html>'; 
            var base64 = function(s) {
                return window.btoa(unescape(encodeURIComponent(s)))
            };

            var format = function(s, c) {
                return s.replace(/{(\w+)}/g, function(m, p) {
                    return c[p];
                })
            };

            htmls = "YOUR HTML AS TABLE"

            var ctx = {
                worksheet : 'Worksheet',
                table : htmls
            }


            var link = document.createElement("a");
            link.download = "export.xls";
            link.href = uri + base64(format(template, ctx));
            link.click();
}