Manual:XML Import file manipulation in CSharp/ru

using System;
using System.Collections.Generic;
using System.Text;
using System.Xml;
using System.Xml.Serialization;
 
namespace WikiFileManipulation
{
    class Program
    {
        static void Main(string[] args)
        {
            // name of the exported wiki file
            string file = "ExportedWikiPages.xml";
 
            // instantiate MediaWikiType object
            MediaWikiType mw = new MediaWikiType();
 
            // Open XML file containing exported wiki pages
            System.Xml.XmlDataDocument xml = new System.Xml.XmlDataDocument();
            xml.Load(file);
 
            // Deserialize the XML file into the MediaWikiType object
            XmlSerializer serializer = new XmlSerializer(typeof(MediaWikiType));
            System.Xml.XmlNodeReader oReader = new System.Xml.XmlNodeReader(xml);
            mw = (MediaWikiType)serializer.Deserialize(oReader);
 
            // Loop through all the Pages in the MediaWikiType object
            for (int i = 0; i < mw.page.Length; i++)
            {
                PageType p = mw.page[i];
 
                foreach (Object o in p.Items)
                {
                    // Examine the RevisionType
                    if (o.GetType().Equals(typeof(RevisionType)))
                    {
                        // Cast to RevisionType object
                        RevisionType r = (RevisionType)o;
 
                        // if you increment "timestamp" by one minute, then you'll be able to re-import file
                        r.timestamp = r.timestamp.AddMinutes(1);
 
                        // Update the value of the "text" of the revision
                        // this is the page text
                        TextType text = (TextType)r.text;
                        text.Value = text.Value.Replace("oldvalue", "newvalue");
                    }
                }
            }
 
            //serialize the updated object back to the original file with the corrections/additions
            System.IO.TextWriter writer = new System.IO.StreamWriter(file);
            serializer.Serialize(writer, mw);
            writer.Close();
        }
    }
}