def get_file_text(filepath):
    """Return the text of a file in a given location, if it has text.

    Parameters
    ----------
    filepath : string
        Path to file to read

    Results
    -------
    string
        String containing text of file (Unicode string, UTF-8 decoded)

    Raises
    ------
    FileNotFoundError if there is no file at filepath
    """
    try:
        with open(filepath, 'r') as f:
            return f.read()
    except UnicodeDecodeError:
        return None
