While exporting repeater to excel ASP.NETC# getting HTML Tag

Question

my asps file Customer.aspx

<asp:UpdatePanel runat="server" ID="updpnl">
    <ContentTemplate>
        <asp:Panel runat="server" ID="Panelmapdetail" Height="280px" ScrollBars="Auto">
            <table class="table table-hover table-nomargin table-colored-header">
                <thead>
                    <tr>
                        <th>UniqID</th>
                        <th>Customer Name</th>
                        <th>Product1</th>
                        <th>Product2</th>
                        <th>Product3</th>
                        <th></th>
                    </tr>
                </thead>
                <tbody>
                    <asp:Repeater runat="server" ID="rptrStudMarksDetails">
                        <ItemTemplate>
                            <tr>
                                <td style="display:none"><asp:Label ID="lbCustomerProduct" runat="server" Text='<%#Eval("CustomerProduct") %>'></asp:Label></td>
                                <td><%#Eval("UniqID") %></td>
                                <td><%#Eval("Customer Name") %></td>
                                <td><%#Eval("Product1") %></td>
                                <td><%#Eval("Product2") %></td>
                                <td><%#Eval("Product2") %></td>
                            </tr>
                        </ItemTemplate>
                    </asp:Repeater>
                </tbody>
            </table>
        </asp:Panel>
    </ContentTemplate>
</asp:UpdatePanel>
<asp:LinkButton runat="server" ID="lbnExport" OnClick="lbnExport_Click">Export to Excel</asp:LinkButton>

my aspx.cs file customer.aspx.cs
 
 
my output