Fungsi Javascript export JSON ke Excel

function openExport(Data, type, showFields) {
        // Data       : {}. Can be any data you want to export (records, columns, custom, etc...).
        // type       : string. Extension of file name 'xls' or 'csv' are possible. By default 'excel' format is done on array
        // showFields : boolean (optional). Insert field names on top of the file data. By default 'false'
            var arrData = typeof Data != 'object' ? JSON.parse(Data) : Data;
            fileName = header + '.' + type;
            var Data = '';
            // show fields on first row ?
            if (showFields) {
                var row = "";
                for (var index in arrData[0]) {
                    if (row !="" && type =='csv') row +=',';
                    row += index + '\t';
                }
                row = row.slice(0, -1);
                Data += row + '\r\n';
            }
            // Prepare array data format
            for (var i = 0; i < arrData.length; i++) {
                var row = "";
                for (var index in arrData[i]) {
                    if (row !="" && type =='csv') row +=',';
                    row += (type == 'xls') ? '"' + arrData[i][index] + '"\t' :  arrData[i][index] + '\t'
                }
                row.slice(0, row.length - 1);
                Data += row + '\r\n';
            }
            // No data?
            if (Data == '') {
                w2alert('No Data Found');
                return;
            }
            var link = document.createElement("a");
            // browser with HTML5 support download attribute
            if (link.download !== undefined) {
                var uri = 'data:application/vnd.ms-excel,' + escape(Data);
                link.setAttribute ( 'href', uri);
                link.setAttribute('style', "visibility:hidden");
                link.setAttribute ('download', fileName);
                document.body.appendChild(link);
                link.click();
                document.body.removeChild(link);
            }
            // IE 10,11+
            else if (navigator.msSaveBlob) {
                var blob = new Blob([Data], {
                    "type": "text/csv;charset=utf8;"			
                });
                navigator.msSaveBlob(blob, fileName);
            }
            // old IE 9-  remove this part ?? deprecated browsers ??
            var ua = window.navigator.userAgent;
            var ie = ua.indexOf('MSIE ');
            if ((ie > -1)) {
                if (document.execCommand) {
                    var oWin = window.open("about:blank","_blank");
                    oWin.document.write(Data);
                    oWin.document.close();
                    var success = oWin.document.execCommand('SaveAs', true, fileName)
                    oWin.close();
                }
}
}

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