what are the h9z files? i cant open any of these or any other file types. what am i missing here? thanks for any help.

H9Z files are the file format used by H9 Control to save presets and/or preset lists.  You can just drag and drop an h9z file onto H9 Control and it will import them into the app.  You can then load and if you wish save the presets onto an H9 or a TimeFactor, ModFactor, PitchFactor or Space with any v5 or above software release installed on it.