By default, a new folder will be created to contain each marker's file, with each file being named after the marker. Splitting the files is as simple as selecting the files you want to split in Windows Explorer and dragging them into the rectangular area at the top of the MIDI File Splitter window (alternatively you can click the 'Load' button). It was designed to be used for splitting up the Session Drummer and Pattern Brush MIDI files included with Cakewalk's SONAR into individual patterns so that they can be dragged and dropped easily one at a time into SONAR's track view.

The MIDI File Splitter application was designed to be a simple utility to split a MIDI file up into multiple sections based on its markers. There is a midi file splitter that may be useful to you. Powertracks can be used I believe also Yamaha XG Works is a useful program if you have Windows XP or earlier OS. There is also the sequencer option of loading a midi file and creating 'markers' within the software and then importing them into the keyboard. You can learn a program called midi2style which is Yamaha format. I prefer to keep it as simple as possible and use Styleworks as much as possible but there are things that can be done to the midi prior to using Styleworks like altering individual channel voice volumes or stripping out 'mega' and 'live' voices from Tyros styles to GM - ' Midiplayer' as shown in my Basic Tutorial here on this page.

Styleworks can of course be used to create a style from midi directly for your pa as you already know. If you have a decent midi you can create a style in a few different ways but mainly to Yamaha format is the most common way and then a simple conversion using Styleworks which you have and finally tweak on the respective keyboard.

I'm not an expert in stylemaking and what I do is all trial and error sometimes spending hours to get a decent result.

Korg to roland style converter