asp classic - Download Excel not working properly in ASP -

i new asp.i need write script download excel in asp.i tried downloading entire page content need download table database.

here code:

     <%@language="vbscript"%>      <form name="form1" id="form1" method="post">      <input type="hidden" name="action" value="sel">      <table>      <tr>      <td><input type="submit" name="submit" id="submit" value="download excel"></td>      </tr>      </table>      hello world      <%      action = request.form("action")       if action="sel"      response.contenttype = "application/octet-stream"      response.contenttype = "application/vnd.ms-excel"       set conn = server.createobject("adodb.connection")      conn.open "provider=sqloledb;data  source=10.1.1.1;uid=sa;pwd=root;database=student"      dim conn,rs      set rs=server.createobject("adodb.recordset")      rs.open "select * studentdetails",conn      response.addheader "content-disposition", "attachment; filename=xl_data.xls"      %>    <table border=1>        <tr>        <%        j = 2        = 0 rs.fields.count - 1        %>        <td width="18"><b>        <% = rs(i).name %></b></td>        <% next %>        <td width="42"></td>        <td width="53"></td>        </tr>        <%        while not rs.eof        %>       <tr>       <% = 0 rs.fields.count - 1        %>       <td valign=top><% = rs(i) %></td>       <% next %>       </tr>       <%       rs.movenext       j = j + 1       loop       rs.close   end if       %>       </table> 

in program have included hello world line while downloading downloading also.so please give me suggestions.thanks in advance.

replace

response.contenttype = "application/octet-stream" 

with

response.clear 

otherwise sending form , table excel