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sudarshann/export-html-table-xls.js

Created September 28, 2020 20:54
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Export any standard html tag to xls file with javascript.
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export-html-table-xls.js
var tableToExcel = (function() {
var uri = 'data:application/vnd.ms-excel;base64,'
, 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"><meta http-equiv="content-type" content="application/vnd.ms-excel; charset=UTF-8"><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>'
, base64 = function(s) { return window.btoa(unescape(encodeURIComponent(s))) }
, format = function(s, c) { return s.replace(/{(\w+)}/g, function(m, p) { return c[p]; }) }
return function(tableID, name) {
table = document.getElementById(tableID);
var ctx = {worksheet: name || 'Worksheet', table: table.innerHTML};
var link = document.createElement("a");
link.download = fileName;
link.href = uri + base64(format(template, ctx));
link.click();
}
})();
var fileName = "data.xls";
var tableID = "custom-report";
tableToExcel(tableID, fileName);
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