Sub Transfaire() 'Je préfèrerais Transfert...
Dim sh As Worksheet, deb&, i&, j%, P As Boolean
'Application.Calculation = -4135 'paraît tout à fait inutile...
Set sh = Sheets("données_brute")
With Sheets("données")
deb = IIf(.[A1] = "", 1, .[A65536].End(xlUp).Row + 1)
sh.UsedRange.Copy .Cells(deb, 1)
.Columns.AutoFit 'dimensionnement des colonnes
.Cells.Sort .[C1], xlAscending, Header:=xlGuess
'suppression des lignes doublons
For i = .[A65536].End(xlUp).Row To 2 Step -1
P = True
For j = 1 To 26
If .Cells(i, j) <> .Cells(i - 1, j) Then P = False: Exit For
Next
If P Then .Rows(i).Delete
Next
End With
'Application.Calculation = -4105
Sheets("Données_brute").Cells.Delete
End Sub