window.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"><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]-->'+
' <style type="text/css">'+
'.excelTable {'+
'border-collapse:collapse;'+
' border:thin solid #999; '+
'}'+
' .excelTable th {'+
' border: thin solid #999;'+
' padding:20px;'+
' text-align: center;'+
' border-top: thin solid #999;'+
' '+
' }'+
' .excelTable td{'+
' border:thin solid #999;'+
' padding:2px 5px;'+
' text-align: center;'+
' }</style>'+'</head><body><table border="1">{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(table, name) {
if (!table.nodeType) table = document.getElementById(table);
var ctx = {worksheet: name || 'Worksheet', table: table.innerHTML};
var downloadLink = document.createElement("a");
downloadLink.href = uri + base64(format(template, ctx));
downloadLink.download = name+".xls";
document.body.appendChild(downloadLink);
downloadLink.click();
document.body.removeChild(downloadLink);
}
})()
