This is a feature in some futuristic games, where the doors that are held closed by 'poles,' in the case of safes, or, sealed via air compression, or, even slide shut, would be able to be opened, maybe by three different types of devices?

[1] The regular 'bolt lock' would be opened by pure magnetism, where the only or each piston is slid away from the centre by magnetic fields gathering under the outside of the door, and, then individually placed outside the doors locks. I suppose we could do this with a regular magnet, but that would be weak, so we should use a pulse of electromagnetism to push the door open, lock wise. This could be done by sending a pulse of energy, from a tip of 'a pipe,' forwards, meeting the area of the resistive metals would mean the pulse would be absorbed by centre and collect resistance of an electromagnetic pulse, and, they would shoot away, of course, maybe blowing the door wide open with the explosion on a regular wooden door, but, being vault size would mean we could easily set the charge to different levels.

[2] With air compression, we could drain the air from the lock, by vacuum sucking it. This would be where we observe to the groove, or, where we think the groove is, and, heat the air with gamma radiation. This will make the air expand, slowly building up pressure, to make a 'pop' if the process is slow enough, of course.

[3] These slide close doors work on hinges holding them in place. This means we could simply apply something that makes 'grease,' like an 'airborne fungal spore,' that will condense on the hinges, slicking them so they literally 'lose their will' to remain together. This would be like applying water to wine, where the wine would filter out, or, like having a overdose of something, where your cells literally just splay out and spread all over the place, the metals will do the same, like a laxative! Applying this will be down to observing the area on the side of the door you are on, and find the hinges by process of elimination, a slower way to open doors, for sure! This will mean you will need to use a regular magnet to find where the most attraction is, and, that is where the hinges are densest, of course. Then, you need simply 'to drill a hole,' a tiny hole with a sharp drill, and, spray the spores all over the hinges, 'loosening' them. If you cannot drill, then you should use a laser that shines through the spores, using gamma rays to carry the spores essence through the door and into the hinges, of course.