因同事的需求是想前端導出excel表格，網上找了一些demo，自己修改了一下，可能以后會用到，記錄下來吧，兼容ie和一些主流瀏覽器，ie可能會報錯，原因參考 這里，edge 瀏覽器還沒有辦法導出，正在嘗試...
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>table 導出excel表格</title>
</head>
<body>
<div>
<button type="button" onclick="exportExcel('tableExcel')">導出Excel</button>
</div>
<div id="myDiv">
<table id="tableExcel" width="100%" border="1" cellspacing="0" cellpadding="0">
<tr>
<td colspan="5" align="center">html 表格導出道Excel</td>
</tr>
<tr>
<td>列標題1</td>
<td>列標題2</td>
<td>類標題3</td>
<td>列標題4</td>
<td>列標題5</td>
</tr>
<tr>
<td>aaa</td>
<td>bbb</td>
<td>ccc</td>
<td>ddd</td>
<td>eee</td>
</tr>
<tr>
<td>AAA</td>
<td>BBB</td>
<td>CCC</td>
<td>DDD</td>
<td>EEE</td>
</tr>
<tr>
<td>FFF</td>
<td>GGG</td>
<td>HHH</td>
<td>III</td>
<td>JJJ</td>
</tr>
</table>
</div>
<script>
var idTmr;
function getExplorer() {
var explorer = window.navigator.userAgent;
console.log(explorer);
//ie
if (explorer.indexOf("Trident") >= 0) {
return 'ie';
}
//firefox
else if (explorer.indexOf("Firefox") >= 0) {
return 'Firefox';
}
//Chrome
else if(explorer.indexOf("Chrome") >= 0){
return 'Chrome';
}
//Opera
else if(explorer.indexOf("Opera") >= 0){
return 'Opera';
}
//Safari
else if(explorer.indexOf("Safari") >= 0){
return 'Safari';
}
}
function exportExcel(tableid) {
if(getExplorer()=='ie'){
var curTbl = document.getElementById(tableid);
var oXL = new ActiveXObject("Excel.Application");
var oWB = oXL.Workbooks.Add();
var oSheet = oWB.ActiveSheet;
var sel = document.body.createTextRange();
sel.moveToElementText(curTbl);
sel.select();
sel.execCommand("Copy");
oSheet.Paste();
oXL.Visible = true;
}
else{
tableToExcel(tableid)
}
}
var tableToExcel = (function() {
var uri = 'data:application/vnd.ms-excel;base64,',
template = '<html><head><meta charset="UTF-8"></head><body><table>{table}</table></body></html>',
base64 = function(s) { return window.btoa(unescape(encodeURIComponent(s))) },
format = function(s, c) {
return s.replace(/{(\w+)}/g,
function(m, p) { return c[p]; }) }
return function(table, name) {
if (!table.nodeType) table = document.getElementById(table)
var ctx = {worksheet: name || 'Worksheet', table: table.innerHTML}
window.location.href = uri + base64(format(template, ctx))
}
})();
</script>
</body>
</html>
原文來自: 這里