Looking for .NET Excel Class

In the following article, Senthil S. uses the following code:

Article: http://www.codeproject.com/KB/vb/Senthil_S__Software_Eng_.aspx

Code:

    With Excel
            .SheetsInNewWorkbook = 1
            .Workbooks.Add()
            .Worksheets(1).Select()
           ...

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Unfortunately, he doesn't include a Dim statement for the Excel object.  My best guess is this:

        Dim Excel As Microsoft.Office.Interop.Excel.Workbook

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Am I wrong?  Am I right?