Bonjour,
A tester :
Option Explicit
Sub Test()
Dim I As Integer, DerniereLigne As Integer, LigneEnCours As Integer
With Sheets("Feuil1 (2)")
DerniereLigne = .Cells(.Rows.Count, 1).End(xlUp).Row
LigneEnCours = 2
For I = 2 To DerniereLigne Step 4
.Cells(LigneEnCours, "C") = .Cells(I, 1)
.Cells(LigneEnCours, "D") = .Cells(I + 1, 1)
.Cells(LigneEnCours, "E") = .Cells(I + 2, 1)
LigneEnCours = LigneEnCours + 1
Next I
End With
End Sub