Sub Creation_onglets2()
Dim DerLig As Long, i As Long
DerLig = Feuil7.Range("B" & Rows.Count).End(xlUp).Row
Application.ScreenUpdating = False
For i = DerLig To 2 Step -1
Sheets("Modele").Copy After:=Feuil7
ActiveSheet.Name = Feuil7.Cells(i, 2)
ActiveSheet.[D9] = Left(ActiveSheet.Name, 2)
Next i
Application.ScreenUpdating = True
End Sub