the C6 sysex librarian for win and mac is no more available on the elektron site. Anyone can post a link or the files here. Thanks. MIDI-OX won’t work.
??? I can download C6 without any issues.
Just go to the support site, select for example Machinedrum UW and scroll to the bottom of the page. This is the pace where you can find C6 selectable for download.