Sub CreationRepertoires()
Dim dercol As Long
On Error Resume Next
i = 1
While Cells(i, 1).Value <> ""
MkDir ActiveWorkbook.Path & "\" & Cells(i, 1).Value
dercol = Cells(i, Cells.Columns.Count).End(xlToLeft).Column
For j = 2 To dercol
MkDir ActiveWorkbook.Path & "\" & Cells(i, 1).Value & "\" & Cells(i, j).Value
Next j
i = i + 1
Wend
End Sub