CoreSpider- Export to Excel in ASP .NET MVC

Index.cshtml

@model IEnumerable<ExportExcel_ASPNETMVC.Models.Customer>
@{
    ViewBag.Title = "Index";
}
<h2>Index</h2>            
<p>
    @Html.ActionLink("Create New", "Create")
</p>
@using (Html.BeginForm("Export", "Customer", FormMethod.Post))
{
    <div class="container">
        <input type="submit" value="Export to Excel" class="btn btn-primary" />
    </div>
    <table class="table">
        <tr>
            <th>
                @Html.DisplayNameFor(model => model.CustomerName)
            </th>
            <th>
                @Html.DisplayNameFor(model => model.CustomerAddress)
            </th>
            <th>
                @Html.DisplayNameFor(model => model.CustomerMobile)
            </th>
            <th></th>
        </tr>

        @foreach (var item in Model)
        {
            <tr>
                <td>
                    @Html.DisplayFor(modelItem => item.CustomerName)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.CustomerAddress)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.CustomerMobile)
                </td>
                <td>
                    @Html.ActionLink("Edit", "Edit", new { id = item.CustomerId }) |
                    @Html.ActionLink("Details", "Details", new { id = item.CustomerId }) |
                    @Html.ActionLink("Delete", "Delete", new { id = item.CustomerId })
                </td>
            </tr>
        }
    </table>
}