c#wince에서 excel csv txt를 읽는 방법

using System;
using System.Linq;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Windows.Forms;
using System.Reflection;

namespace demo_rfcom_wince
{
    class csvFile
    {
        private  StreamReader m_StreamReader;
        private string[] m_StrArry;
        private int m_FileLinesCount = 0;
        public csvFile(string name)
        {
            string cvsFileName;
            cvsFileName  =  System.IO.Path.GetDirectoryName(Assembly.GetExecutingAssembly().ManifestModule.FullyQualifiedName)+"\\"+name;
            m_StreamReader = new StreamReader(cvsFileName, Encoding.Default);
            while(m_StreamReader.ReadLine()!=null)m_FileLinesCount++;
            m_StrArry = new string[m_FileLinesCount+1];

            //load
            int i;
            m_StreamReader.BaseStream.Position = 0;
            for (i = 0; i < m_FileLinesCount; i++)m_StrArry[i] = m_StreamReader.ReadLine();
        }
        ~csvFile()
        {
            m_StreamReader.Close();
        }
        public int GetLinesCount()
        {
            return m_FileLinesCount;
        }
        public string Read(int x, int y)
        {
            if (y > m_FileLinesCount) return null;
            string[] r = new string[128];
            r = m_StrArry[y].Split(',');
            return r[x];
        }
    }
}