DOWNLOAD EXCEL FILES

These files serve a number of purposes.  First off, they serve as a means to confirm what's done in the book.  They're also intended to be general enough to allow you to try other scenarios, simulate with other circumstances, to simply "play around".  More than this, the underlying macros "running the program" are wide-open.  Get in there and play around as well.  You'll make errors - I've probably made errors in them as well.  Fine.  Let's correct them.  This first requires you figure out why they failed.  Good.  That means you have to understand what's going on in the first place.  Super!