def interpret_waveform(fileContent, RelativeChannelNo):
    """
    Extracts the data for just 1 channel and computes the corresponding
    time array (in seconds) starting from 0.
    
    Important Note: RelativeChannelNo is NOT the channel number on the Saleae data logger 
    it is the relative number of the channel that was saved. E.g. if you 
    save channels 3, 7 and 10, the corresponding RelativeChannelNos would
    be 0, 1 and 2.
    
    Parameters
    ----------
    fileContent : bytes 
        bytes object containing the data from a .bin file exported from
        the saleae data logger.
    RelativeChannelNo : int
        The relative order/position of the channel number in the saved
        binary file. See Important Note above!

    Returns
    -------    
    time : ndarray
        A generated time array corresponding to the data list
    Data : list
        The data from the relative channel requested
    SampleTime : float
        The time between samples (in seconds)
    """
    (ChannelData, LenOf1Channel,
     NumOfChannels, SampleTime) = read_data_from_bytes(fileContent)

    if RelativeChannelNo > NumOfChannels-1:
        raise ValueError("There are {} channels saved, you attempted to read relative channel number {}. Pick a relative channel number between {} and {}".format(NumOfChannels, RelativeChannelNo, 0, NumOfChannels-1))
    
    data = ChannelData[RelativeChannelNo]

    del(ChannelData)

    time = _np.arange(0, SampleTime*LenOf1Channel, SampleTime)

    return (0,SampleTime*LenOf1Channel,SampleTime), data