Sub Test()
Dim i As Integer
Cells(1, 1) = Date 'aujourd'hui
Cells(1, 1).Resize(, 10).DataSeries 'série chronologique
For i = 1 To 10
Cells(1, i).Value = converti_en_date(Cells(1, i).Value)
Next
End Sub
Function converti_en_date(dat As Date) As String
Dim jour_sem As String, jour As Byte, mois As String, date_transforme As String
jour_sem = Application.Proper(Format(dat, "dddd"))
jour = Day(dat)
mois = Format(dat, "mmmm")
date_transforme = jour_sem & vbCrLf & jour & " " & mois
converti_en_date = date_transforme
End Function