在网上查了些Response导出excel然后设置样式的方法，发现没有一个可行的于是开始自己研究，

发现可以通过输出样式的方式进行配置,我要设置的是全文本格式在excel样式是这样的mso-number-format:"\@" 

于是我对Response输出进行了完善

Response.Clear();            Response.BufferOutput = true;            string style = " ";            //设定输出的字符集             Response.Charset = "GB2312";            //假定导出的文件名为FileName.xls             Response.AppendHeader("Content-Disposition", "attachment;filename= tiaoma.xls");            Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");            //设置导出文件的格式             Response.ContentType = "application/ms-excel";            EnableViewState = false;            System.Globalization.CultureInfo cultureInfo = new System.Globalization.CultureInfo("ZH-CN", true);            System.IO.StringWriter stringWriter = new System.IO.StringWriter(cultureInfo);            System.Web.UI.HtmlTextWriter textWriter = new System.Web.UI.HtmlTextWriter(stringWriter);            GridView gv = new GridView();            gv.DataSource = Session["table"] as DataTable;            gv.DataBind();            gv.RenderControl(textWriter);            Response.Write(style);            Response.Write(stringWriter.ToString());            Response.End();

成功的实现了Response输出并设置excel样式的效果