def parse_curve_data(header, curve):
    """
    Make sense out of that what is returned by CURVE. This works only
    if the scope is set to return the data in ASCII, not binary.

    Args:
        header (dict): a parsed header
        curv (str): returned by CURVE?

    Returns:
        tuple: np.ndarray xs, np.ndarray values
    """
    curve.replace('#', '')
