如何使用JQuery将HTMLtable转换为CSV文件

Question

我正在寻找有关如何将HTML表格转换为EXCEL文件的解决方案。解决方案的链接是：Export html table data to Excel using JavaScript / JQuery is not working properly in chrome browse

或代码：

$('#btnExport').click(function () {
            fnExcelReport();
            function fnExcelReport() {
                var tab_text = "<table border='2px'><tr bgcolor='#87AFC6'>";
                var textRange; var j = 0;
                tab = document.getElementById('table1'); // id of table

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

                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, "QI.csv");
                }
                else                 //other browser not tested on IE 11
                    sa = window.open('data:application/vnd.ms-excel,' + encodeURIComponent(tab_text));

                return (sa);
            }
        });

现在我需要将HTML表转换为CSV文件。我试图将文件扩展名.xls更改为.csv，但它没有用。任何人都可以帮我转换为csv文件吗？