Private Sub CommandButton7_Click()
    On Error Resume Next
    If Liste2.ListCount = 0 Then
        MsgBox "Aucune enveloppe à traiter", , "Enveloppe"
        Exit Sub
    End If
    If OptionButton1 = True And Liste3.ListIndex < 0 Then
        MsgBox "Enveloppe non séléctionnée", , "Enveloppe"
        Exit Sub
    End If
    If OptionButton2 = True And LargEnvel = "" Then
        MsgBox "Largeur Enveloppe non renseignée", , "Enveloppe"
        Exit Sub
    End If
    If OptionButton2 = True And HautEnvel = "" Then
        MsgBox "Hauteur Enveloppe non renseignée", , "Enveloppe"
        Exit Sub
    End If
    Workbooks.Add
    ActiveWindow.DisplayGridlines = False
    FormatEnvel
    Unload Envel
   End Sub