// The StreamReader are using the Namespaces: System and system.IO
using (StreamWriter sw = new StreamWriter("c:WriteLines.txt")) //path
{
sw.WriteLine("Here goes the text");
}
using System.IO;
StreamWriter out = new StreamWriter("file.txt");
out.WriteLine("First line.");
out.WriteLine("Second line.");
out.WriteLine("Third line.");
out.WriteLine("Fourth line.");
out.WriteLine("Fifth line.");
out.Close();
//This will create a txt file in the debug folder.
/*U can set the path by using*/ "c:path"