A student has accidentally submitted an exam prior to actually completing it. Is it possible to reopen an exam for an individual?
In New Quizzes, yes. Here is a guide about how to do it How do I moderate a student's assessment attempt in New Quizzes?
In Classic Quizzes there is not a way to reopen and attempt. What I usually advise is to give the student an additional attempt and tell them to begin where they left off. As a teacher you will be able to see both attempts and can manually adjust the grading on the 2nd attempt to include the question scores from the first attempt (or the other way around depending on what's easier). Once I publish a quiz, how can I give my students extra attempts?
Retrieving data ...