This is actually a followup to my first post. Forgive me if this is not the proper procedure.
Chapters 3-4-5-7-8 all have sample files that do not match the examples in the book. chapter 6 is missing. All the files do look like an end result of the chapter. If the starting file is supposed to be created by the user, that is not stated, and clarity is missing as to what fields should be used to create the start file. These are, as noted in the book, large files. The direction given, for a teaching book, is glaringly missing.
Is there another link where the beginning files can be found?