Sub DelEditeur()
Dim M As Range, DL As Long, Plage As Range
With ThisWorkbook.Worksheets("Feuil1")
DL = .Range("K" & .Rows.Count).End(xlUp).Row
Set Plage = .Range("K2:K" & DL)
Set M = Plage.Find(Application.WorksheetFunction.Max(Plage))
.Rows(M.Row + 1 & ":" & DL).Delete
End With
End Sub