Response.ContentType = "application/vnd.ms-excel";            Response.AddHeader("Content-Disposition", string.Format("attachment;filename={0}", HttpUtility.UrlEncode(execlName)  + DateTime.Now.ToString("yyyy-MM-dd").Trim() + ".xls"));            Response.Clear();            excel.WriteTo(Response.OutputStream);            Response.End();

HttpUtility.UrlEncode(execlName) //防文件名乱码