Hi Gary!
Thanks for reaching out! I understand that you're using Quizmaker to build a quiz, and it sounds like Rise 360 as well. Quizmaker 360 is a standalone quiz tool that you can publish for LMS or Web and host in one of those environments, but it can't be imported into Rise 360.
You have two options if you'd like to create a quiz in Rise 360. You can either build it in Rise 360 as a lesson or create it in Storyline 360 and host it in Rise 360 using a Storyline block.
If you choose to use Storyline 360, then I'd recommend importing your quiz from Quizmaker 360 into Storyline 360 so you don't have to rebuild the quiz.