Can I exit Thailand on an ED visa and re-enter on a tourist stamp without canceling?

The user inquired about the process of transitioning from an ED visa to a tourist stamp upon its expiration. The comments provided clarification on whether one must formally cancel their ED visa or if they can simply leave the country and return on a tourist stamp. It is advised to cancel the current visa with documentation from their school and to be aware of the consequences of not formally canceling. If canceled on the last day of the course, immediate departure or an application for a new extension is necessary, typically allowing 7 days to leave if not approved.