This is a follow-up to my post on Windows 8 Help topics.
The bottom left of the Help window has a toggle for offline/online versions of the Help. I disconnected from the web and selected offline. The exact same content appeared as for online. I could see that the topics were HTML/CSS but I wasn’t able to find the topic files on the local drive through a text string search. A tip from a colleague got me to the right place.
The locally installed versions of the Help files are located here: Windows/Help/Windows/ContentStore/en-US. There are eight mshc files in there dated 5/19. I was able to open the mshc zips with 7-Zip without a problem. The zips contain all the HTML, CSS, and image files that make up the Help content.