public Form1()
        {
            InitializeComponent();
            total.Add(Data2);
            total.Add(Data3);
            total.Add(Data4);
           
        }
        List<string> Data1 = new List<string>();
        List<string> Data2 = new List<string>();
        List<string> Data3 = new List<string>();
        List<string> Data4 = new List<string>();
        List<List<string>> total = new List<List<string>>();
        
        private void button1_Click(object sender, EventArgs e)
        {
            var result = File.ReadLines(@"tool.txt").ToArray();
            for (int i = 0; i < result.Count(); i++)
            {
                //total[i].Add(result[i]);
                string[] arr = result[i].Split(',');
                total[i].AddRange(arr);
            }
           
        }