Steve
Either the "parts" or the complete .exe file are options. You do one or the other, but not both. The "parts" are/were for the older, slower systems of yesteryear, where you downloaded a little at a time from a "metered dialup bulletinboard" site, and concatenated them (offline) into a finished whole. With today's equipment, you only need the complete .exe file, but after you download it, do scroll back up, just a bit, and grab the "
Application Manual", as you will certainly need that too.
To download the complete .exe file: under the heading
Batch Downloading the Application, left click on the boxed blue
Download just to the right of
Application + Windows® Installer (7.94MB). This is a Windows installer file, so you will need to tell your computer where to save it, so that you can run it from that location. It is a good idea to retain the installer, in case you need to re-install it at some time in the future. These are really old files, so there is no telling how long Casio will keep them available.
As for loading from the Card: sorry I did not warn you about the cursor button "non-labels". My WK-3800 is the same way. My problem is that I keep hitting the down arrow, by mistake, instead of either the left or right arrow, and end up "entering" (selecting) something I did not intend to, and have to back out and start all over again, so I certainly understand your frustration. I am a little suspicious that that "jazz" converter (?) program may be trashing your files. I was never able to get it to work. I recommend Jorgen Sorensen's
MIDI Formatter utility:
http://www.jososoft.dk/yamaha/software/software.htm#mf
Wait for the redirect from his Home page to his Utilities page, then In his "grid" of
Yamaha Keyboard Software (give that page a few seconds to fully populate, then scroll back to top of page) it is in the third column from the left - second line down. Click on
Download (Win). It requires Microsoft .NET Framework as a runtime program, but if your Win-10 is like mine, it already has .NET Framework installed. If not, you can download that from the Microsoft website.