Sub mlaqsck()
Dim res(1 To 5)
Set fic1 = "fichier1.xlsx"
Set fic2 = "fichier2.xlsx"
For i = 1 To 5
res(i) = Workbooks(fic1).Range("a" & i)
Next i
For Each c In Workbooks(fic2).Column("a")
For i = 1 To 5
If c = res(i) Then
c.EntireRow.Hidden = True
Exit For
End If
Next i
Next c
End Sub