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I’m trying to arrange some XmlFileReading (using the page, of course), to save and retrieve an array I have. However, the XCode Documentation says that “the array representation must contain only property list objects (NSString, NSData, NSArray, or NSDictionary objects).” So what can I do in order to save this information? Thanks.

NSMutableArray is a subclass of NSArray, so it can be stored in a property list with no problem. When you reload it, you’ll need to convert it to a mutable form with mutableCopy. If you have custom objects, you have to implement NSCoding for them