Centrar a la derecha columas exportadas a excel

[gasafonso]

Hola amigos tengo este codigo

Código vb:

Dim I As Long, j As Long
    Dim objExcel As Object
    Dim objWorkbook As Object
    On Error Resume Next ' por si se cierra Excel antes de cargar los datos
    Set objExcel = CreateObject("Excel.Application")
    objExcel.Visible = False
    Set objWorkbook = objExcel.Workbooks.Add
    For I = 0 To grilla.Rows - 1
       grilla.Row = I
        For j = 0 To grilla.Cols - 2
            grilla.Col = j
            If I = 0 Then
                objWorkbook.ActiveSheet.Cells(I + 1, j + 1).Interior.Color = &H80C0FF
                objWorkbook.ActiveSheet.Cells(I + 1, j + 1).Font.Bold = True
                objWorkbook.ActiveSheet.Cells(I + 1, j + 1).Value = grilla.text
            Else
                objWorkbook.ActiveSheet.Cells(I + 1, j + 1).Style = "Comma"
                objWorkbook.ActiveSheet.Cells(I + 1, j + 1).NumberFormat = "_-* #,##0.0_-;-* #,##0.0_-;_-* ""-""??_-;_-@_-"
                objWorkbook.ActiveSheet.Cells(I + 1, j + 1).NumberFormat = "_-* #,##0_-;-* #,##0_-;_-* ""-""??_-;_-@_-"
                objWorkbook.ActiveSheet.Cells(I + 1, j + 1).NumberFormat = "_-* #,##0_-"
                objWorkbook.ActiveSheet.Cells(I + 1, j + 1).Interior.Color = &HC0FFFF
                objWorkbook.ActiveSheet.Cells(I + 1, j + 1).Value = grilla.text
                objWorkbook.ActiveSheet.Cells(I + 1, j + 1).HorizontalAlignment = xlRight
            End If
 
        Next
               objWorkbook.ActiveSheet.Cells(I + 1, 1).NumberFormat = "_-* dd/mm/yyyy_-"
               
    Next
    objExcel.Cells.Select
    objExcel.selection.EntireColumn.AutoFit    ' Ancho de columna
    objWorkbook.ActiveSheet.Range("A1:h59").Borders().LineStyle = 1
    objWorkbook.ActiveSheet.Range("A59:i59").Font.Bold = True
    objExcel.Range("b1").Select
    objExcel.Visible = True
    
    objExcel.ActiveWindow.SelectedSheets.PrintPreview ' Previsualizar informe
    Set objWorkbook = Nothing
    Set objExcel = Nothing
 

y quiero alinear a la derecha las ultimas 3 columnas y la primera

Como lo puedo hacer ? gracias