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CocoaDiscussions - How do I open a bundle with NSOpenPanel I’d like to navigate into application bundles with NSOpenPanel. I’ve seen it done in Resourcerer, but I can’t find any information on how to do it.

Take a look at -setTreatsFilePackagesAsDirectories:, a method on NSSavePanel, which is NSOpenPanel’s superclass. When browsing docs, don’t forget to look at superclasses!