HttpContext.Current.Response.Buffer = true;

HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + txtBuyUserID.SelectedValue + ".xls");

HttpContext.Current.Response.Charset = "GB2312";

HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.Default;

HttpContext.Current.Response.ContentType = "application/ms-excel";

System.IO.StringWriter tw = new System.IO.StringWriter();

System.Web.UI.HtmlTextWriter hw = new System.Web.UI.HtmlTextWriter(tw);

// 读取数据库，循环

tw.Write("交易订单号\t第三方订单号\t充值游戏帐号\t退款金额\t支出帐户\t收入帐户\t退款订单号\t退款人\t收款人\t退款时间\n");

HttpContext.Current.Response.Write(tw.ToString());

HttpContext.Current.Response.End();

tw.Close();

hw.Close();

---------------

aspose  NPIO组件

Dcom组件