Reinstalling Office for Mac

Hiya, I had a question for you guys in case anyone here has run into the same issue. (I’ve done my googling and I can’t seem to find the solution.) I’ve been wanting to reinstall OSX for a little while now, for several reasons, but I am not sure how to reinstall Office after I have done so. I purchased it online as a download, but I no longer have the Activation Code due to accidentally deleting the email (yeah, I know). Is there any way I can get it reinstalled or am I just tough out of luck? Thank you for your help in advanced, and I really appreciate that you took the time to read this!