How Do I Export The Asp Table Data To Excel ?

<table id="tblsalary">
<tr style="background-color: #2291FF;">
        <td align="left" class="salarytable1">

        Basic Salary</td>
        <td align="left" class="salarytable2" style="font-weight: bold">
            <asp:Label ID="lblBasic" runat="server" Text="Label"></asp:Label>
            </td>
         <td align="left" class="salarytable1">
        PF Employee Contribution</td>
        <td align="left" class="salarytable2" style="font-weight: bold">
            <asp:Label ID="lblPFcontribution" runat="server" Text="Label"></asp:Label>
            </td>
        </tr></table>

Protected Sub btndownload_Click(sender As Object, e As EventArgs) Handles btndownload.Click
    Dim excel As GridExcelExport = New GridExcelExport(Me.tblsalary, "Salary Slip.xls")
    excel.ExportNestedTable = True
    excel.Export()
End Sub