原代码来自：https://www.cnblogs.com/thetree/p/13596676.html
我将tableToExcel函数改为两参数，分别是 表格的选择器 和 自定义文件名
<script>
function base64(content) {
return window.btoa(unescape(encodeURIComponent(content)));
}
function tableToExcel(tableSelector, fileName) {
var excelContent = $(‘‘+tableSelector).html();
var excelFile = "<html xmlns:o=‘urn:schemas-microsoft-com:office:office‘ xmlns:x=‘urn:schemas-microsoft-com:office:excel‘ xmlns=‘http://www.w3.org/TR/REC-html40‘>";
excelFile += "<head><!--[if gte mso 9]><xml><x:ExcelWorkbook><x:ExcelWorksheets><x:ExcelWorksheet><x:Name>{worksheet}</x:Name><x:WorksheetOptions><x:DisplayGridlines/></x:WorksheetOptions></x:ExcelWorksheet></x:ExcelWorksheets></x:ExcelWorkbook></xml><![endif]--></head>";
excelFile += "<body><table width=‘10%‘ border=‘1‘>";
excelFile += excelContent;
excelFile += "</table></body>";
excelFile += "</html>";
var link = "data:application/vnd.ms-excel;base64," + base64(excelFile);
var a = document.createElement("a");
a.download = fileName + ".xlsx";
a.href = link;
a.click();
}
</script>
例如table的class="form-table"，自定义文件名为“infomation”
调用时就可以写为 tableToExcel(".form-table" , "infomation");
弹出下载框，其中文件名是infomation.xlsx
HTML Table转Excel表格（tableToExcel）
原文：https://www.cnblogs.com/an-drew/p/15018052.html