def _grab_all_conformers(cnf_save_fs):
    """ Reads all conformers from the Save FileSystem
    """

    cnf_locs_lst = cnf_save_fs.leaf.existing()
    if cnf_locs_lst:
        cnf_geoms = [cnf_save_fs.leaf.file.geometry.read(locs)
                     for locs in cnf_locs_lst]
    else:
        cnf_geoms = None
    return cnf_geoms