Are they asking you to do the exit interview during your paid working hours, or after you have officially left?

Mundane tasks like an exit interviews are actually part of what you are paid for - even if not specified in the contract. Go, be professional, and that's it.

What do you think you are gaining by not doing an exit interview?

An exit interview is typically 15-30 minutes, 1 hour tops. That's a negligible amount of time. What's your real reason you don't want to go ? If you are worried about the contents of the interview, ask a different question: "What should I do or not-do during an exit interview?"

@Erik It is during my paid working hours.

@Abigail nothing specific actually. They don't listen to any suggestions and feedbacks from the employees. Why should I talk if I know that conversation ends up in the trash bin?

@RustumirStormbraid if they want to pay you to have a pointless chat then that's up to them. It's also worth remembering that an exit interview isn't just about asking you questions: it can often be used to remind you of your contractual obligations (such as non-compete or non-disclosure agreements).

@Hilmar: The expected length of the interview being negligible is both subjective and not really the point. What matters more is if it happens during work (paid) time.

On what basis do you think you may be able to refuse? Would you refuse to attend a meeting that the CEO asked you to attend because you feel it would be pointless? Would you refuse to perform a task you were specifically asked to do because you don't see the value in it? You can decide how you spend your time at work when you run your own company or work for yourself.

Top tips on avoiding it here; workplace.stackexchange.com/a/60270/28854

Use the Marshawn Lynch approach (context: NFL players on teams in the Super Bowl are required to participate in "media day" where the press can ask them questions. If they don't, they get fined. Lynch had a rough relationship with sports press, so he avoided talking to them as much as possible).

Does your company give severance? If so, refusing an exit interview may put that in jeopardy.

It might not be explicitly in your contract, but most contracts for employment contain a clause for 'additional work-related activities', which this is.

@NotThatGuy - on the basis that he already resigned and they can't do shit to him.

@Davor "they can't do #### to [me]" is possibly the worst attitude to have in an employer-employee relationship (even one that's coming to an end), and practically guarantees that those people won't have anything good to say about you (in case you need references) and won't consider you for any opportunities in future. The only thing that would justify such an attitude is active mistreatment, but "attend this pointless 1 hour meeting" doesn't even get close to that.

@Acccumulation the context is Europe (Netherlands; I don't know specifically about there). In many EU countries severance pay is required by law if people are made redundant, but the OP has resigned so wouldn't get severance pay - but they would be legally entitled to pay for unused holiday entitlement etc. and that couldn't be taken away (even they were fired for misconduct taking away something they've already earned is a problem)

Do you intend to continue working in the same or a similar field in the future? If so there's a non-zero chance you'll run into a former coworker, or someone whose memory of you is this set of events. Don't burn bridges.

Exit interviews can also be used to go over a checklist of things you need to return (laptop, access pass, etc), and going over things like "remember you did that expensive course last year, and we agreed to a three year write-off period, so you owe us 2/3 of the original course price. What payment terms would you like?"