Excel 从ASP.NET 服务器下载到 本地

  System.IO.FileInfo file = newSystem.IO.FileInfo(path2);

                Response.Clear();

                Response.Charset ="GB2312";

                Response.ContentEncoding =System.Text.Encoding.UTF8;

               Response.AddHeader("Content-Disposition", "attachment;filename=" + Server.UrlEncode(file.Name));

               Response.AddHeader("Content-Length", file.Length.ToString());

                Response.ContentType ="application/x-bittorrent";

               Response.WriteFile(file.FullName);