'Importar una hoja de cálculo completa 
SQL = "SELECT * INTO TablaDeExcel " & _
      "FROM OPENROWSET(" & _
      "'Microsoft.Jet.OLEDB.4.0'," & _
      "'Excel 8.0;Database=C:\Mis documentos\Libro1.xls;HDR=Yes'," & _
      "'SELECT * FROM [Hoja1$]')"