Sub Recupere_Fichier()
Dim Repertoire As String, Version As String, Fichier As String
Repertoire = Cells(1, 1).Value
If Dir(Repertoire, vbDirectory) = "" Then MsgBox "Le répertoire n'existe pas", 16: Exit Sub
Version = Cells(2, 1).Value
Fichier = Repertoire & "\Camembert " & Version & ".xlsm"
If Dir(Fichier) = "" Then MsgBox "Le fichier n'existe pas", 16: Exit Sub
End Sub