Sub Worksheet_Activate()
Dim F, i
Application.ScreenUpdating = False: i = 2
Range("A2:B1000").ClearContents
Range("A2:B1000").NumberFormat = "0"" m3"""
For Each F In Worksheets
If F.Name <> "Synthèse" Then
Range("A" & i) = F.Name
Range("B" & i) = Sheets(F.Name).[T1]
i = i + 1
End If
Next F
End Sub