How can I switch from an ED visa to a covid-tourist extension in Chiang Mai?

To switch from an ED visa to a COVID-19 tourist extension in Chiang Mai, you need to cancel your current ED visa at the immigration office where it was issued. Obtain documentation from your school stating that you will stop studying when your current extension expires. Approximately a week before your ED visa expires, go to the immigration office to cancel your ED visa and apply for the 60-day COVID tourist extension.