private void WriteCheckoutDataToFile(List <VisitorsInformation> visitorList)
        {
            if (File.Exists("CheckoutsInformation.csv"))
            {
                using (Stream stream = new FileStream("CheckoutsInformation.csv", FileMode.Open, FileAccess.ReadWrite))
                {
                    var cs = new CsvChecker <VisitorsInformation>()
                    {
                        UseTextQualifier = true
                    };
                    cs.AppendToFile(stream, visitorList, "CheckoutsInformation.csv");
                }
            }
            else
            {
                using (Stream stream = new FileStream("CheckoutsInformation.csv", FileMode.Create, FileAccess.Write))
                {
                    var cs = new CsvChecker <VisitorsInformation>
                    {
                        UseTextQualifier = true
                    };

                    cs.WriteToFile(stream, visitorList);
                }
            }
        }