Private Sub Worksheet_Activate()
Application.ScreenUpdating = False
Cells.Delete 'RAZ
Feuil1.[A5].CurrentRegion.Copy [A1]
With UsedRange
.Sort .Cells(1), xlAscending, .Cells(1, 2), , xlDescending, Header:=xlYes 'tri sur 2 colonnes
.RemoveDuplicates 1 'supprime les doublons
End With
End Sub