Public Sub Test()
On Error GoTo errorHandler
Sheets(400).Select
MsgBox 'Ok tout est beau'
On Error GoTo 0
Exit Sub
errorHandler:
Call SiErreur
Err.Clear
Resume Next
End Sub
Public Sub SiErreur()
Dim bytSheet As Byte
bytSheet = ActiveWorkbook.Sheets.Count
Sheets(bytSheet).Select
End Sub