read xml file for text unity

I am building a unity app and I want to do the following. 1. a language menu, when clicked I send a number to other parts to do the rest 2. I need an XML file, to store every building info in it, so I can build a light weight app to be run on android. my app is about old building info in multiple language. I have found some code and it is not helping. I am a little bit exhausted, but I really need your help if you please. thanks in advance.

using UnityEngine;
using System.Collections;
using System.Xml;

public class ChatNPC : MonoBehaviour {

    //building data
    private string buildingName;
    private string buildingType;
    private string TypeName;

    //info data
    public int maxdata;
    public int showdata;
    private string [] data;
    private XmlReader reader;

    void OnGUI (){
        if (showdata < maxdata) {
            GUI.Label (Rect (0,0,200,20), TypeName);
            GUI.Label (Rect (0,20,200,10) , data [showdata]);
            if (GUI.Button(Rect (0,120,200,20) , "Next"))
            {
                showdata++;
                if (showdata>maxdata)
                    showdata = 0;
            }
        }
    }
    // Use this for initialization
    void Start () {
        TypeName = buildingType + ":" + buildingName;
        maxdata = 0;
        showdata = 0;
        buildingName = "Unset";
        buildingType = "Unset";
        data = null;

        reader = XmlReader.Create ("testXml.xml");

        while (reader.Read()) {
            if (reader.IsStartElement("buildings"))
            {
                buildingName = reader.GetAttribute("name");
                buildingType = reader.GetAttribute("buildingsType");
                maxdata = reader.GetAttribute("entries");

                data = new string[maxdata];

                for (int showdata = 0; showdata < maxdata; showdata++)
                {
                    reader.Read();
                    if (reader.IsStartElement("text"))
                    {
                        data[showdata] = reader.ReadString();
                    }
                }
                showdata=0;

            }
        }
    }

    // Update is called once per frame
    void Update () {

    }
}