Are you two up all night?!
I generally am up all night, but the post you've referenced went up at 10 PM local/NYC time.
And since ryck lives at least two hours west of me, his post went up even earlier than mine did in his local time.
Where did you find that d/l, i.e. are you certain it can be trusted?
I just found
Download and install or reinstall Office 2016,
Lost Product Key, and
Using product keys with Office, all of which look helpful in one or more ways.