protected override void OnClosing(CancelEventArgs e)
        {
            base.OnClosing(e);
            ControleurRIBPage controleurRIBPage = MainFrame.Content as ControleurRIBPage;// Allows to call the function to release the Excel file from use when closing the main window (which shuts down the application in the current setup)
            VMControleurRIB   vMControleurRIB   = controleurRIBPage.DataContext as VMControleurRIB;

            if (vMControleurRIB.ExcelApp != null)
            {
                if (vMControleurRIB.ExcelApp.IsOpen)
                {
                    vMControleurRIB.ExcelApp.Terminate();// Automatically releases the previous file when the user loads a new one without releasing first.
                }
            }
        }
 public ControleurRIBPage()
 {
     InitializeComponent();
     DataContext = new VMControleurRIB();
 }