private void Convert()
        {
            List <string> corrected = new List <string>();

            for (int i = 0; i < Lines.Count; i++)
            {
                string   line    = Lines[i];
                string[] columns = line.Split(new[] { SelectedDelimiter.Value }, StringSplitOptions.None);

                string output = string.Empty;

                for (int j = 0; j < 8; j++)
                {
                    output += columns[j] + ";";
                }
                corrected.Add(output);
            }

            string folder = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
            string path   = Path.Combine(folder, "Employee.txt");

            AppFile.WriteTextFile(corrected, path, Encoding.UTF8);
        }