主要思路，通过GridView来导出文档。

<asp:GridView ID="GridView1" BorderColor="Black" runat="server" AutoGenerateColumns="False"

            Font-Size="12px" Width="656px" AllowSorting="True" Height="172px">

            <Columns>

                <asp:BoundField DataField="Name" HeaderText="姓名" />

                <asp:BoundField DataField="Sex" HeaderText="性别" />

                <asp:BoundField DataField="BirthDay" HeaderText="出生日期" />

                <asp:BoundField DataField="StudentId" HeaderText="身份证号" />

                <asp:BoundField DataField="JieduId" HeaderText="借读证号" />

                <asp:BoundField DataField="Familymemberinfo_Name1" HeaderText="第一监护人姓名" />

            </Columns>

            <HeaderStyle BackColor="Azure" Font-Size="12px" HorizontalAlign="Center" />

            <RowStyle HorizontalAlign="Center" />

            <PagerStyle HorizontalAlign="Center" />

        </asp:GridView>

        /// <summary>

        /// 定义导出Excel的函数

        /// </summary>

        /// <param name="FileType"></param>

        /// <param name="FileName"></param>

        private void Export(string FileType, string FileName)

        {

            for (int i = ; i < GridView1.Rows.Count; i++)

            {

                //这里给指定的列编辑格式，将数字输出为文本，防止数字溢出

                GridView1.Rows[i].Cells[].Attributes.Add("style", "vnd.ms-excel.numberformat:@");

            }

            Response.Charset = "GB2312";

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

            Response.ContentEncoding = System.Text.Encoding.GetEncoding("gb2312");

            Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());

            Response.ContentType = FileType;

            this.EnableViewState = false;

            StringWriter tw = new StringWriter();

            HtmlTextWriter hw = new HtmlTextWriter(tw);

            GridView1.RenderControl(hw);

            Response.Write(tw.ToString());

            Response.End();

        }

        /// <summary>

        /// 此方法必重写，否则会出错

        /// </summary>

        /// <param name="control"></param>

        public override void VerifyRenderingInServerForm(Control control)

        {

        }