Check file Exists Or not

using System;
using System.IO;

class Program
{
    static void Main(string[] args)
    {
        FileInfo file = new FileInfo("file.txt");

        if (file.Exists )
        {
            Console.Write("File Exists");
        }else
        {
            Console.Write("File Does Not Exist");
        }

        Console.ReadKey();
    }
}