Sub Tata()
Dim Msg as sring
Dim Style as sring
Dim Title as string
Dim Answer as string
Msg = 'Voulez vous sauvegarder votre ?'
Style = vbOKCancel + vbQuestion ' Définit les boutons.
Title = 'Information'
Answer = MsgBox(Msg, Style, Title)
If Answer = vbOK Then
ThisWorkbook.Close ' bouton Oui.
Else ' Choix NON.
End If
End sub