Is there a way to export grades that INCLUDES a timestamp of when they completed an assignment/quiz? If so, how?
Natively within Canvas, I don't believe there is an out-of-box feature that will do this. However, Canvas does have extensive APIs available and this would certainly be achievable using the APIs.
I have shared your question to the Canvas Developers group, to see if anyone in there might have done this previously, I will admit we are only just starting our journey on pulling grades out via the API, so it is still rather new to me.
Hope that helps!
Retrieving data ...