Because of that, you get several different ways to buy Office 2016, and you'll be forgiven if you don't know which one to pick. Long gone are the days of grabbing a box of CDs at the store - today, subscriptions are the norm, but they're not the only way to buy. If you're eager to use the new apps, they are available now, but first, you have to figure out how you'll purchase them. This week, Office 2016 arrives for Windows and the software is a major upgrade to the previous versions of Microsoft's productivity suite.