@msnow7 ,
The easiest way is to use Respondus (provided you have that available to you). Before you begin, you need to decide whether you're using Quizzes or Quizzes.Next inside Canvas.
If you are using Quizzes, then you don't need to save it to a QTI file to bring it into Quizzes. There is a Canvas Personality that you set on the Respondus start screen. It can publish directly to Canvas from Respondus without needing the intermediate step of creating a QTI file.
If you are using Quizzes.Next, then my understanding is that you will need to save the quiz into a QTI format. You'll need to choose the IMS QTI personality on the Respondus start screen. Here are a couple of pages from the Canvas Instructor Guide that explain how to import QTI files
Additional information can be found from Respondus itself. They have a Training and Guides page that explains how to use it.
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