try this
<html>
<head>
<script type="text/javascript">
function write_to_excel()
{
str="";
var mytable = document.getElementsByTagName("table")[0];
var row_Count = mytable.rows.length;
var col_Count = mytable.getElementsByTagName("tr")[0].getElementsByTagName("td").length;
var ExcelApp = new ActiveXObject("Excel.Application");
var ExcelSheet = new ActiveXObject("Excel.Sheet");
ExcelSheet.Application.Visible = true;
for(var i=0; i < row_count ; i++)
{
for(var j=0; j < col_Count; j++)
{
str= mytable.getElementsByTagName("tr")[i].getElementsByTagName("td")[j].innerHTML;
ExcelSheet.ActiveSheet.Cells(i+1,j+1).Value = str;
}
}
}
</script></script></head>
<body>
<input type="submit" value="Export to EXCEL" onclick="write_to_excel();"/>
<!-- ************************************************-->
<!--**** INSERT THE TABLE YOU WANT EXPORT HERE ****-->
<table><tr><td>First</td><td>second</td></tr></table>
<!-- *******************example given above****************-->
</body>
</html>
