I have a letter of Recommendation that was sent to me from a science competition director. I have read the letter since it does not open, and it does not say it is a letter of rec (and I read it a year ago before I signed the agreement not to read letters on the common app). How can I submit this letter? Should I just put it in a new envelope and send it to the school I am applying to? It has a signature on it as well from the director