Using WriteLine method


using System.IO;
using System;

class WriteFile
{
    static void Main()
    {
        // Writes file with StreamWriter.

        string fileLoc = "D://MyFile.txt";

        FileStream fs = new FileStream(fileLoc, FileMode.Create);    // Creates file with the specified path
        fs.Close();
        Console.WriteLine("File created successfully");

        StreamWriter sw = new StreamWriter(fileLoc);                // StreamWriter is used to write to the file
        sw.WriteLine("word1");                                      // WriteLine method appends a newline character.
        sw.WriteLine("word2");
        sw.WriteLine("word3");
        sw.Flush();

        Console.WriteLine("Written to file successfully");
        sw.Close();

        Console.ReadLine();
    }
}

Output:
File created successfully
Written to file successfully