<span style="font-family:FangSong_GB2312;font-size:18px;"><strong>            string path = Server.MapPath("../templateExcel/附件模板.xls");
            FileInfo fi = new FileInfo(path);//excelFile為檔案在伺服器上的地址
            if (File.Exists(path))
            {
                Response.Clear();
                Response.Buffer = true; //設定<span style="color: rgb(51, 51, 51); line-height: 24px; white-space: pre-wrap;">輸出頁面是否被緩衝</span>
                Response.Charset = "GB2312"; //設定了型別為中文防止亂碼的出現 
                Response.AppendHeader("Content-Disposition", String.Format("attachment;filename={0}", HttpUtility.UrlEncode("附件模板.xls"))); //定義輸出檔案和檔名 
                Response.AppendHeader("Content-Length", fi.Length.ToString());
                Response.ContentEncoding = Encoding.Default;
                Response.ContentType = "application/ms-excel";//設定輸出檔案型別為excel檔案。 
                Response.WriteFile(fi.FullName);
                Response.Flush();
                Response.End();
            }
            else
                ScriptManager.RegisterStartupScript(this, this.GetType(), "", "<script>alert('此模板不存在！');</script>", false);</strong></span>