using System;

using System.Text;

using System.Xml;

using System.Xml.Linq;

public class Program

{

    public static void Main()

    {

        XDocument doc = new XDocument(

            new XElement("Root",

                new XElement("Child1", "Value1"),

                new XElement("Child2", "Value2")

            )

        );

​

        Save(doc, @"output.xml");

    }

    static void Save(XDocument doc, string filename)

    {

        var settings = new XmlWriterSettings()

        {

            Indent = true,  // Set to true for indents

            IndentChars = "    ",  // Set the characters used for indentation

            NewLineChars = "\r\n",  // Set the newline characters

            NewLineHandling = NewLineHandling.Replace, // Replace the default newline characters

            Encoding = new UTF8Encoding(false)

        };

​

        using (var writer = XmlWriter.Create(filename, settings))

        {

            doc.Save(writer);

        }

    }   

}