C#.NET 3.5 Excel 2007 Ribbon Add-in VS 2008 run macro

[Wheels012]

Good morning. Using Visual Studio 2008 (C# - Excel 2007 Add-in) I created a Excel 2007 Ribbon tab named Macros. It contains several buttons. I got some sample code online, but I can seem to run the macros. I have the following:

using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Office.Tools.Ribbon;
using System.Reflection;
using Excel = Microsoft.Office.Interop.Excel;
using Microsoft.Office.Core;

private void btnImport_Click(object sender, RibbonControlEventArgs e)
{

// Object for missing (or optional) arguments.
object oMissing = System.Reflection.Missing.Value;

// Create an instance of Microsoft Excel, make it visible,
// and open Book1.xls.
Excel.ApplicationClass oExcel = new Excel.ApplicationClass();
oExcel.Visible = true;
Excel.Workbooks oBooks = oExcel.Workbooks;
Excel._Workbook oBook = null;
oBook = oBooks.Open("c:\\Book1.xlsx", oMissing, oMissing,
oMissing, oMissing, oMissing, oMissing, oMissing, oMissing,
oMissing, oMissing, oMissing, oMissing, oMissing, oMissing);

// Run the macros.
RunMacro(oExcel, new Object[] { "Import" });
//RunMacro(oExcel, new Object[]{"DoKbTestWithParameter",

}
private void RunMacro(object oApp, object[] oRunArgs)
{
oApp.GetType().InvokeMember("Run",
System.Reflection.BindingFlags.Default |
System.Reflection.BindingFlags.InvokeMethod,
null, oApp, oRunArgs);
}

Any idea what might be an issue with the code? WHEELS

[Wheels012]

Update - I have the following:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Office.Tools.Ribbon;
using System.Reflection;
using Excel = Microsoft.Office.Interop.Excel;
using Microsoft.Office.Core;
using System.Windows.Forms;

namespace ExcelAddInCustomTab
{
public partial class RibbonCustom : OfficeRibbon
{
public RibbonCustom()
{
InitializeComponent();
}

private void btnFileImport_Click(object sender, RibbonControlEventArgs e)
{
Excel.ApplicationClass oExcel = new Excel.ApplicationClass();
RunMacro(oExcel, new Object[] { "FileImport" });
}

private void RunMacro(object oApp, object[] oRunArgs)
{
try
{
oApp.GetType().InvokeMember("Run",
System.Reflection.BindingFlags.Default |
System.Reflection.BindingFlags.InvokeMethod,
null, oApp, oRunArgs);
}
catch (Exception ex)
{
MessageBox.Show(ex.InnerException.Message);
}
}

}
}

In the Excel 2007 spreadsheet, the Import tab shows up with the several buttons I set up. I am getting the following error: The macro may not be available in this workbook, or all macros may be disabled. I checked all the trusted location and permission settings, and the add-in and macros are not disabled. WHEELS