Question

How to append data to a file in C#

Answer 1

using System;
using System.IO;

namespace Append_Data_To_TextFile
{
    class Program
    {
        static void Main(string[] args)
        {
            FileStream fs = new FileStream("d:\\test.txt", FileMode.Append, FileAccess.Write);

            StreamWriter sw = new StreamWriter(fs);

            sw.WriteLine("The append line");
            sw.Close();
            fs.Close();
        }
    }
}

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