BinaryReader reader = new BinaryReader(new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read));
            byte[] header = reader.ReadBytes(13);
            if (header != new byte[] { 0x41, 0x4B, 0x54, 0x41, 0x47, 0x00, 0x46, 0x4F, 0x47, 0x00, 0x00, 0x00, 0x00 })
            {
                reader.Close();
                return false;
            }