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How to remove staples
Choose a staple remover.
There are lots of different mechanisms that you can use to loosen staples and remove them from paper, some super-simple and some a bit more complex. Depending on how much paper you've got to remove, you might find one or the other more useful.
Spring-activated staple removers are the most simple and cheap mechanisms for removing staples. Basically, these are little claws that you can use to pinch open the back clasps of the staple to free it up and remove it.