I did try googling. I didn't try googling "chm files mac" because I'd never heard of a chm file in my life, much less realized that the guide was in some format called "chm" that could be converted to something else. I use a Mac, which doesn't use chm. :P It took me half an hour to figure out that, apparently, you didn't intend for the program you sent me after to do anything to change my ability to read the guide through the XSE help menu, but to convert the file type of the guide itself into something else to be read separately from XSE.
Despite that, I did manage to find a program that works, and I've finally got guide access. Thank you for the explanatory response.