Say someone were to open up an old world with a removed item in their inventory, so MC crashes every time the world is opened. Is there anything this person could use the remove said item from their inventory from outside of the game?
NBTExplorer is pretty nice and should do the job for you. Just navigate to <your world>/playerdata/<your uuid>/inventory
Say this person was a complete dunderhead and did not know how to remove an item. Would you be able to help this person?
than send a certain zomified moderator a copy of the world along with the item id of the item you need removed