How to get to Heilongjiang Transportation Bureau to sell driving test materials?

Not to the transportation bureau, but to the local vehicle management office where your driving school is located.

How to cancel the driving school file will be different in different regions. Driving schools in some areas can help students cancel their business, and students don't have to go in person. Driving schools in some areas require students to personally bring the original ID card to the vehicle management department to submit a written application, and then go to the examination room of the department for processing.

Here, I suggest you call the vehicle management office first to see if you can handle it yourself. If you still don't understand, you can go to some learning car websites to check. Here, I recommend you to know the sound of the car. If you don't know, you can search for "driving school files" on the website. I hope it helps you ~