Read and Write files with Unity

UnityReadWriteFile.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.Text;
using System.IO;

public class UnityReadWriteFile : MonoBehaviour
{	

	void Start ()
	{								
	}

	void Update ()
	{
	}

	string ReadFile (string path)
	{
		StreamReader sr = new StreamReader (path, Encoding.UTF8);
		string data = sr.ReadToEnd ();
		sr.Close ();
		return data;
	}

	void WriteFile (string path, string data)
	{
		StreamWriter sw = new StreamWriter (path);
		sw.WriteLine (data);
		sw.Close ();
	}  
}