igGrid export two grid in one excel different sheets

by georgianastasov

HTML

<script src="https://igniteui.com/js/modernizr.min.js"></script>
<script src="https://code.jquery.com/jquery-1.9.1.min.js"></script>
<script src="https://code.jquery.com/ui/1.10.3/jquery-ui.min.js"></script>
<script src="https://igniteui.com/js/external/FileSaver.js"></script>
<script src="https://igniteui.com/js/external/Blob.js"></script>
<script src="https://cdn-na.infragistics.com/igniteui/latest/js/infragistics.core.js"></script>
<script src="https://cdn-na.infragistics.com/igniteui/latest/js/infragistics.lob.js"></script>
<script src="https://cdn-na.infragistics.com/igniteui/latest/js/infragistics.excel-bundled.js"></script>
<script src="https://cdn-na.infragistics.com/igniteui/latest/js/modules/infragistics.gridexcelexporter.js"></script>
<link href="https://cdn-na.infragistics.com/igniteui/latest/css/themes/infragistics/infragistics.theme.css" rel="stylesheet"></link>
<link href="https://cdn-na.infragistics.com/igniteui/latest/css/structure/infragistics.css" rel="stylesheet"></link>

<p>Grid 1</p>
<table id="grid"></table><br />
<p>Grid 2</p>
<table id="grid2"></table><br />
<input type="button" id="exportButton" value="Export"></input>

JavaScript

$(function () {
            $(function () {
            				//data set 1
                    var data = [
                        { 'ProductID': 1, 'Name': 'Omnis ut illum nisi.', 'ProductNumber': 904 },
                        { 'ProductID': 2, 'Name': 'Quis quibusdam qui.', 'ProductNumber': 905 },
                        { 'ProductID': 3, 'Name': 'Sint laudantium et.', 'ProductNumber': 903 },
                        { 'ProductID': 4, 'Name': 'Tempore eos.', 'ProductNumber': 902 },
                        { 'ProductID': 5, 'Name': 'Maiores aut ducimus.', 'ProductNumber': 901 },
                    ];
                    
                    //data set 2
                    var data2 = [
                        { 'ProductID': 'ALT', 'Name': 'Vel inventore.', 'ProductNumber': 105 },
                        { 'ProductID': "TST", 'Name': 'Ut molestiae.', 'ProductNumber': 101 },
                        { 'ProductID': "JKL", 'Name': 'Nihil magnam aut ut.', 'ProductNumber': 103 },
                        { 'ProductID': "QWE", 'Name': 'Repellendus dolorum.', 'ProductNumber': 102 },
                        { 'ProductID': "ZXC", 'Name': 'Odit ut quo minus.', 'ProductNumber': 100 },
                    ];

										//grid 1
                    $("#grid").igGrid({
                        autoGenerateColumns: false,
                        width: "100%",
                        height: "250px",
                        columns: [
                            { key: "ProductID", headerText: "Product ID", dataType: "number" },
                            { key: "Name", headerText: "Product Name", dataType: "string" },
                            { key: "ProductNumber", headerText: "Product Number", dataType: "number" }
                        ],
                        dataSource: data,
                        primaryKey: "ProductID"
                    });
                    
                    //grid 2
                    $("#grid2").igGrid({
                       ...