Sub Workbook_Open()
Application.EnableEvents = False 'désactive les évènements
Workbooks.Open Filename:= _
"\\atlas.edf.fr\CO\45dam-dpn\restreint.007\ps.004\Pap_pcp\LISTES\Planning_EP.xlsm"
Windows("Planning equipe 3x8 2019.xlsm").Activate
Application.Run "'Planning equipe 3x8 2019.xlsm'!ep2019_33100"
Application.Run "'Planning equipe 3x8 2019.xlsm'!ferme_ep"
Application.EnableEvents = True 'désactive les évènements
Me.Activate
UserForm1.Show
Application.CutCopyMode = False
End Sub