pp.m

    NSString *xmldata_s = [[NSString alloc] initWithContentsOfFile:dataFile encoding:NSUTF8StringEncoding error:nil];
    NSData *xmldata = [xmldata_s dataUsingEncoding: NSUTF8StringEncoding];
    
    NSMutableArray *pp = [NSPropertyListSerialization propertyListFromData: xmldata
                                                    mutabilityOption: NSPropertyListMutableContainers
                                                              format: NSPropertyListXMLFormat_v1_0
                                                    errorDescription: nil];
    NSLog(@"Deserialized: %@", pp);
    [[NSUserDefaults standardUserDefaults] setObject:pp forKey:kPagePoints];