example for how to parse csv file in c#, tested.

ParseCsv.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
using System.Threading.Tasks;
using Microsoft.VisualBasic.FileIO;

namespace JuestForCshap
{
    class Program
    {
        static void Main(string[] args)
        {
            TextFieldParser parser = new TextFieldParser(@"d:\test.csv");
            parser.TextFieldType = FieldType.Delimited;
            parser.SetDelimiters(",");
            while (!parser.EndOfData)
                foreach (var filed in parser.ReadFields())
                    Console.WriteLine(filed);
        }
    }
}