Sub SelectionnerFichiers()
Dim i As Integer, MesFichiers As Collection, Fichier
Dim RegEx As Object, matches As Object
On Error Resume Next
Set RegEx = CreateObject("VBScript.RegExp")
RegEx.Pattern = ".*\\(.*)\\(.*)$"
RegEx.Global = True
    Sheets("Menu").Select
    Set MesFichiers = ChoixFichiers()
    Init
    'Set Fso = CreateObject("Scripting.FileSystemObject")
    'Set FsoFolder = Fso.GetFolder(Repertoire) '
    i = 1 + DerLig
    For Each Fichier In MesFichiers
        i = i + 1
        Set matches = RegEx.Execute(Fichier)
        Cells(i, 1) = Fichier
        Cells(i, 2) = matches(0).submatches(0) + "_" + matches(0).submatches(1)
     Next
    Set MesFichiers = Nothing
    DerLig = i - 1
End Sub