This document explains how you can download assessment results in Canvas.
For Classic Quizzes:
You can download Quiz results within Canvas to an external file. To do this, simply select the Quiz you want to review results for under the Quiz tab. Then, select the Quiz Statistics icon on the right-hand side of the screen.
This leads to a window where you have the ability to select a Student analysis option.
This option downloads the students' results as a CSV file.
Note: This feature is not available in Canvas New Quizzes