If you want 2016 64-bit, and its defaulting to 32-bit, the easiest way if you purchased Microsoft Office 2016 Professional Plus Cd Key Global, and activating via setup.office.com is to:
* In the last step of setup.office.com don't click "download now", right click on the "download now" button and copy the link and paste it into your URL, then find x86 in the URL and change it to x64 leaving the rest the same. Now press enter to execute the URL and enjoy your x64 Office 2016.

5 stelle, tutto funzionante e immediato. Ottimo servizio!

Naprosto super a bez problémů. Zakoupení klíče a následná aktivace produktu Office 2016 Professional Plus přes internet, proběhla bez chyby během pár minut. Doporučuji = BEST

super quick amazing easy to install and the cheapest - No worries about payment on-line it is safe

It didn't work at first, i contacted them, they sent me a link with the right version to download. I uinstalled my version, i installed theirs, key was accepted! Everything within the hour was resolved! I would recommend to buy the key and then install office, it works better in this order. I mean, not to use it on previous licenses. I am very satisfied, it is my fourth purchase from this site and they always delivered! And their Customer Service is really fast!