Cocoa Programming for OS X (5th Edition)   12. Archiving

About the 12. Archiving category (1)
Archiving: Document.swift and Employees.swift for Swift 4.2, Xcode 10.1 (1)
Archiving with Swift 4.0 - NSCoding vs Codable and getting this to work! (1)
Encode/decode in 3.0 (2)
Could not cast value of type '__NSDictionaryM' (2)
Where is the Supporting Files group? (2)
Ambiguous reference to member (3)
Swift 2 Error Handling (1)
How can I save the attributed string (text) into rtf file? (1)
Errata: makes no sense to force-cast to optional (4)
NSArchiving exception (2)
I'm Not Sure NSCoding,NSCoder,and NSKeyedArchive are Good (2)
Wrong init() method called (8)
Document txt icon fails to appear in Finder (2)