def read_char(infile, num_bytes):
    """Converts an array of bytes to a string.

    Arguments:
        infile {file-like} -- The binary file to read the select number of bytes.
        num_bytes {integer} -- The number of bytes to read and parse.

    Returns:
        [string] -- UTF-8 decoded string value.
    """
    return infile.read(num_bytes).decode('utf-8')