And being on a Mac, the app suite does support the Retina display too.
As soon as you open the apps, you will notice that the UI has been refined, there is a new task pane and a bunch of other tweaks to modernize the platform. This release of Office comes with updated versions of Word, Excel, PowerPoint, OneNote, and Outlook. This is the first large update for Office on OS X in many years as the last major release was in 2011. Microsoft has announced today that the Office 2016 Mac Preview is now open to everyone and if you want to try out the new bits, hit the source link at the bottom of this post.
