Sub SaveAsWithDate()
Dim MonChemin As String, MonFichier As String
With ThisWorkbook
MonChemin = .Path 'ou alors en dûr 'C:/mes documents/mes fichiers/'
MonFichier = Left(.Name, Len(.Name) - 4)
.SaveAs MonChemin & '/' & MonFichier & Format(Date, '-YYYY-MM-DD')
End With
End Sub