private void ExportExcel() ...{ string table = Request.Form["hidReportString"]==null ? "" : Request.Form["hidReportString"].ToString() ; table = table.ToLower(); //table=table.Replace("<img","<span"); table=table.Replace("border=0","border=1"); Response.Clear(); Response.Buffer= true; Response.Charset="utf-8"; //***关键 //下面这行很重要, attachment 参数表示作为附件下载,您可以改成 online在线打开 //filename=FileFlow.xls 指定输出文件的名称,注意其扩展名和指定文件类型相符,可以为:.doc || .xls || .txt ||.htm string fileName = this.SelectedListType==ListType.OTMonthlyReport ? "OTMonthlyReport.xls" : "OTDetails.xls"; Response.AppendHeader("Content-Disposition","attachment;filename=" + Server.UrlEncode(fileName)); Response.ContentEncoding=System.Text.Encoding.UTF7; //****关键 //Response.ContentType指定文件类型 可以为application/ms-excel || application/ms-word || application/ms-txt || application/ms-html || 或其他浏览器可直接支持文档 Response.ContentType = "application/ms-excel"; this.EnableViewState = false; Response.Write(table); Response.End(); }