Using the textfieldparser to read a files contents to a list string array

ReadFileContentsToList.cs

        public static readonly string path = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop), "mytext.txt");
        public static List<string[]> IEnum = new List<string[]>();

        private void Button1_Click(object sender, EventArgs e)
        {
            using (FileStream reader = File.OpenRead(path))
            using (TextFieldParser iParse = new TextFieldParser(reader))
            {
                iParse.Delimiters = new[] { "," }; iParse.HasFieldsEnclosedInQuotes = true;
                do
                    IEnum.Add(iParse.ReadFields());
                while (!iParse.EndOfData);
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            foreach (var (firstName, secondName)
                in from string[] line in IEnum
                   let firstName = line[0]
                   let secondName = line[1]
                   let genderType = line[2]
                   let emailAddress = line[3]
                   let personalAddress = line[4]
                   let personalDOB = line[5]
                   select (firstName, secondName))
            /* To get more variables, you need to extend Linq to iterate over and select the additional's */
            {
                Console.WriteLine($"Persons first name is : {firstName}");
                var fullName = string.Concat(firstName, string.Empty.PadRight(1), secondName);
                Console.WriteLine($"Persons Full Name is : {string.Concat(firstName, string.Empty.PadRight(1), secondName)}");
            }
        }

        private void button3_Click(object sender, EventArgs e)
        {
            for (int i = 0; i < IEnum.Count; i++)
            {
                var firstName = IEnum[i][0];
                var secondName = IEnum[i][1];
                var genderTyple = IEnum[i][2];
                var emailAddress = IEnum[i][3];

                Console.WriteLine(firstName);
                /* [i] iterates the IEnum and is self-incremental, while [0] (if changed) will give you a different result, first name [0] second name be [1] etc */
            }
        }

        /* File contents was as follows :
                Petras, Petraitis, Vyras, petras.p1 @dope.com, Nice g. 14, 1992-12-01
                Petryte, Petraite, Moteris, petryte.p2 @dope.com, Sad g. 14, 2000-06-01
                Antanas, Antanaitis, Vyras, antanas.a1 @dope.com, Cool g. 19, 1988-06-02
        */