Sub Renommer_dossiers()
Dim chemin$, ancien, nouveau, i%
chemin = ThisWorkbook.Path & "\"
ancien = Array("Arbre", "Buche", "Cadenas")
nouveau = Array("00001 - Arbre", "00003 - Buche", "00002 - Cadenas")
For i = 0 To UBound(ancien)
If Dir(chemin & ancien(i), vbDirectory) <> "" Then Name chemin & ancien(i) As chemin & nouveau(i)
Next
End Sub