Do I need to cancel my ED visa extension before leaving Thailand if it expires shortly after my departure?

The user inquires about the necessity of canceling their ED visa extension before leaving Thailand, specifically if it needs to be done since they are leaving shortly before the extension expires. A commenter explains that the proper procedure involves going to the immigration office with paperwork from the school confirming the end of studies, ensuring that the extension is officially canceled before departure. Failure to do this may not affect new visa acquisition but could lead to complications or fines during future extensions.