Private Sub Workbook_Open()
With Windows(ThisWorkbook.Name)
.Application.CommandBars("Ply").enabled = False 'Masquage menu contextuel
.Application.DisplayFormulaBar = False 'Masquage barre de formule
.Application.ExecuteExcel4Macro "SHOW.TOOLBAR(""Ribbon"",false)" 'Masquage ruban
End With
End Sub