.sco and .scb files are both models especially for particles, the best example is Katarina: her Q and W dagger are .scb and .sco. RiotFileTranslator support both filetypes, but sadly the export for .scb is bugged, so you need to use Wooxy for that.
If you encounter any issues with this tutorial or you don’t understand part of it, you can ask for help on the Killerskins-Discord server
or you can contact me directly: IM#6715
Embed a youtube video if you have one, if not, delete the section.