Yes - the original recruiting centre will have your original file. They will need any updates since they last saw you - education and employment and medical. You will need to go through the interview, medical and Reliability Check again, and the CFRC will pull your previous military file to confirm release item, and any qualifications that could be recognized.
Wish it was just a matter of showing up at the CFRC, but these are the checks the system has put in place and the CFRCs need to do to get someone back in.