How would you modify a routine so that only the first element of an array is written out in a C# console appplication?

I am writing a C# Console application using VS2010.

How would you rewrite the following routine so that only the first element of an array is written out? I only need the first element to be written out. Ideally I just need the 1st string of data to be written out and no longer need an array of elements.

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private static void ProcessFileBinary(string filePath, StreamWriter sw1)
        {    
            var anchor1 = Encoding.UTF8.GetBytes("II*");
            var anchor2 = Encoding.UTF8.GetBytes("55ELRC");
            List<byte[]> result1 = new List<byte[]>();
            var bytes = File.ReadAllBytes(filePath);

            for (int i = 0; i < bytes.Length; i++)
            {
                var data = bytes.Skip(i).Take(anchor1.Length);
                if (data.SequenceEqual(anchor1))
                {
                    for (int k = i + anchor1.Length; k < bytes.Length; k++)
                    {
                        var data2 = bytes.Skip(k).Take(anchor2.Length);
                        if (data2.SequenceEqual(anchor2))
                        {
                            var res = bytes.Skip(i).Take(k - i).ToArray();
                            result1.Add(res);
                            i = k;
                            break;
                        }
                    }
                }
            }
            string bankFilePath = System.IO.Path.Combine(MyGlobals.BASE_DIR, MyGlobals.BASE_FILE_Name + ".ard.out");
            using (FileStream fs = new FileStream(bankFilePath, FileMode.Create))
            {
                using (BinaryWriter bwrite = new BinaryWriter(fs))
                {
                    foreach (var arr in result1)
                    {
                        bwrite.Write(arr);
                    }
                }
            }
            sw1.Close();