How to export HTML table in excel

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I want to give Download Excel button this table i want in excel

Internet exploer extension not coming

here ASHA,ANM,Mother is dynamically coming from db

<table class="table table-bordered">
                                                <thead>
                                                    <tr class="tblhead">
                                                        <th>State Name</th>
                                                            <th colspan="2">Mother</th>
                                                            <th colspan="2">ASHA</th>
                                                            <th colspan="2">ANM</th>

                                                    </tr>
                                                </thead>
                                                <tbody>
                                                    <tr>
                                                        <td> </td>
                                                            <td>Count</td>
                                                            <td>Payment</td>
                                                            <td>Count</td>
                                                            <td>Payment</td>
                                                            <td>Count</td>
                                                            <td>Payment</td>

                                                    </tr>
                                                     
                                                         <tr>
                                                        <td width="20%"><a>Andhra Pradesh</a></td>
                                                                <td width="10%">22</td>
                                                                <td width="10%">₹ 30,800</td>
                                                                <td width="10%">57</td>
                                                                <td width="10%">₹ 12,450</td>
                                                                <td width="10%">32</td>
                                                                <td width="10%">₹ 7,250</td>
                                                             </tr>
                                                         <tr>
                                                        <td width="20%"><a>Arunachal Pradesh</a></td>
                                                                <td width="10%">24</td>
                                                                <td width="10%">₹ 54,545</td>
                                                                <td width="10%">12</td>
                                                                <td width="10%">₹ 65,655</td>
                                                                <td width="10%">23</td>
                                                                <td width="10%">₹ 89,815</td>
                                                             </tr>
                                                         <tr>
                                                        <td width="20%"><a>Assam</a></td>
                                                                <td width="10%">45</td>
                                                                <td width="10%">₹ 304,800</td>
                                                                <td width="10%">56</td>
                                                                <td width="10%">₹ 12,450</td>
                                                                <td width="10%">56</td>
                                                                <td width="10%">₹ 7,250</td>
                                                             </tr>

                                                </tbody>
                                            </table>

What I have tried:

function fnExcelReport() {
        var tab_text = "<table border="2px"><tr bgcolor="#87AFC6">";
        var textRange; var j = 0;
        tab = document.getElementById('tblTesting'); // id of table

        for (j = 0 ; j < tab.rows.length ; j++) {
            tab_text = tab_text + tab.rows[j].innerHTML + "</tr>";
            //tab_text=tab_text+"";
        }

        tab_text = tab_text + "</table>";
        tab_text = tab_text.replace(/<a[^>]*>|<\/A>/g, "");//remove if u want links in your table
        tab_text = tab_text.replace(/<img[^>]*>/gi, ""); // remove if u want images in your table
        tab_text = tab_text.replace(/<input[^>]*>|<\/input>/gi, ""); // reomves input params

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

        if (msie > 0 || !!navigator.userAgent.match(/Trident.*rv\:11\./))      // If Internet Explorer
        {
            txtArea1.document.open("txt/html", "replace");
            txtArea1.document.write(tab_text);
            txtArea1.document.close();
            txtArea1.focus();
            sa = txtArea1.document.execCommand("SaveAs", true, "Activity.xls");
            return (sa);
        }
        else {
            //other browser not tested on IE 11
            //sa = window.open('data:application/vnd.ms-excel,' + encodeURIComponent(tab_text));
            var a = document.createElement('a');
            a.href = 'data:application/vnd.ms-excel,' + encodeURIComponent(tab_text);
            a.download = 'exported_table.xls';
            a.click();
            e.preventDefault();
        }
        
    }