byte[] byteArray = { 72, 101, 108, 108, 111 }; // Example byte array

​

string str = Encoding.UTF8.GetString(byteArray);

Console.WriteLine(str);

public static void Main()

    {

        byte[] bytes = Encoding.Default.GetBytes("ABC123");

        Console.WriteLine("Byte Array is: " + String.Join(" ", bytes));

        string str = Encoding.Default.GetString(bytes);

        Console.WriteLine("The String is: " + str);

    }

​

 public static void Main()

    {

        byte[] bytes = Convert.FromBase64String("QUJDMTIz");

        Console.WriteLine("Byte Array is: " + String.Join(" ", bytes));

        string str = Convert.ToBase64String(bytes);

        Console.WriteLine("The String is: " + str);

    }

string bitString = BitConverter.ToString(bytes);  

byte[] byteArray = { 72, 101, 108, 108, 111 };

string str = Encoding.Default.GetString(byteArray);

Console.WriteLine(str);

string utfString = Encoding.UTF8.GetString(bytes, 0, bytes.Length);