One Quickie

Saving property lists as XML (XML->General)
You can save any of the "property list" classes (NSDictionary, NSArray,NSNumber, NSString, NSData) as XML like this:
    NSData *data;
    data = [NSPropertyListSerialization
               dataFromPropertyList: notes
               format: NSPropertyListXMLFormat_v1_0
               errorDescription: nil];
Then write out the data using NSFileManager, or whatever other mechanism you wish.

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