以UTF-8格式导出html表格到Excel文件

我使用上面的代码将html表导出为ex​​cel文件。

<!DOCTYPE html> <html> <head> <meta http-equiv="content-type" content="application/vnd.ms-excel; charset=UTF-8"> <meta charset="UTF-8" /> <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.3/jquery.min.js"></script> <script lang="js"> function fnExcelReport() { var tab_text = '<html xmlns:x="urn:schemas-microsoft-com:office:excel">'; tab_text = tab_text + '<head><xml><x:ExcelWorkbook><x:ExcelWorksheets><x:ExcelWorksheet>'; tab_text = tab_text + '<x:Name>Test Sheet</x:Name>'; tab_text = tab_text + '<x:WorksheetOptions><x:Panes></x:Panes></x:WorksheetOptions></x:ExcelWorksheet>'; tab_text = tab_text + '</x:ExcelWorksheets></x:ExcelWorkbook></xml></head><body>'; tab_text = tab_text + "<table border='1px'>"; tab_text = tab_text + $('#myTable').html(); tab_text = tab_text + '</table></body></html>'; var data_type = 'data:application/vnd.ms-excel'; var ua = window.navigator.userAgent; var msie = ua.indexOf("MSIE "); if (msie > 0 || !!navigator.userAgent.match(/Trident.*rv\:11\./)) { if (window.navigator.msSaveBlob) { var blob = new Blob([tab_text], { type: "application/csv;charset=utf-8;" }); navigator.msSaveBlob(blob, 'Test file.xls'); } } else { $('#test').attr('href', data_type + ', ' + encodeURIComponent(tab_text)); $('#test').attr('download', 'Test file.xls'); } } </script> </head> <body> <a href="#" id="test" onClick="javascript:fnExcelReport();">download</a> <table id="myTable"> <thead> <tr> <td style="padding-right: 30px;"><b>שם פרטי</b> </td> <td style="padding-right: 30px;"><b>גיל</b> </td> </tr> </thead> <tbody> <tr> <td>Tester1</td> <td>30</td> </tr> <tr> <td>Tester2</td> <td>29</td> </tr> <tr> <td>Tester3</td> <td>17</td> </tr> </tbody> </table> </body> 

它工作得很好,但是当我input希伯来字符,所以我有编码问题..

我怎样才能将这个文件编码为UTF-8编码,所有的文本将显示,因为它需要?