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    <p><code>NSCoding</code> will do exactly what you want. I recommend you read up on it in the Apple docs, but I thought it was pretty straightforward to use. Your class (and any child classes) will need to implement the <code>NSCoding</code> protocol and you'll need to add <code>-encodeWithCoder:</code> and <code>-initWithCoder:</code> methods to your objects. Most of the common framework classes implement <code>NSCoding</code> already.</p> <p>The code for your class will look something like this:</p> <pre><code>-(void) encodeWithCoder: (NSCoder*) coder { [coder encodeInteger: versionValue forKey: versionKey]; [coder encodeObject: myStuff forKey: myStuffKey]; } -(id) initWithCoder: (NSCoder*) coder { self = [super init]; if ( ! self) return nil; myStuff = [[coder decodeObjectForKey: myStuffKey] retain]; return self; } </code></pre> <p>It's recommended you add a version number when encoding to give you flexibility to manage changes to your archive format in future versions. </p> <p>In my class, I added a convenience method to archive my object:</p> <pre><code>-(void) archiveToFile: (NSString*) path { NSMutableData *data = [[NSMutableData alloc] init]; NSKeyedArchiver *archiver = [[NSKeyedArchiver alloc] initForWritingWithMutableData: data]; [archiver encodeObject: self forKey: myArchiveKey]; [archiver finishEncoding]; [archiver release]; [data writeToFile: path atomically: YES]; [data release]; } </code></pre> <p>and another one to unarchive or create a new object:</p> <pre><code>+(MyArchive*) newFromFile: (NSString*) path orWithMyStuff: (MyStuff*) myStuff { NSData *data = [[NSData alloc] initWithContentsOfFile: path]; NSKeyedUnarchiver *unarchiver = [[NSKeyedUnarchiver alloc] initForReadingWithData: data]; MyArchive *myArchive = [unarchiver decodeObjectForKey: myArchiveKey]; [unarchiver finishDecoding]; if (myArchive) { [myArchive retain]; } else { myArchive = [[MyArchive alloc] initWithStuff: myStuff; } [unarchiver release]; [data release]; return myArchive; } </code></pre> <p>Since your top level object is an <code>NSArray</code>, you'll need to modify the last two methods for your case, but most of the boilerplate code will be the same.</p>
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    1. COAnd that would produce a nice plist? I was under the impression that writing out NSData would just produce serialized data and not a plist.
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    2. COThat produces an NSCoding archive—a file with preserved copies of your objects, kind of like a nib file (but you can't use Interface Builder to edit it). The "Archives and Serializations Programming Guide for Cocoa" in your documentation will explain it.
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    3. COBy default it archives to a binary plist, but you can change that to an xml plist if you want. Unfortunately it's not really human readable since it contains class and pointer metadata as well as your object data.
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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