Microsoft introduced Windows 10 insider program last year. According to Microsoft, insider program is a successful one. So the company announced Office insider program too some months ago. Now Microsoft has made registration for Office Insider Program live and you can now install the Office Preview on your PC.
You need to sign up for Office insider program. By registering with it you will get access to Pre-release versions of Microsoft Office products. Microsoft has introduced office insider program for Windows (mobile and desktop), Mac and Android.
Words from Microsoft :
Office 2016 is rolling out around the world, and we’re already hard at work on the next wave of updates. We’ve asked Office 365 Home, Personal, and University subscribers to help make the next Office even better by becoming an Office Insider. It’s easy to join, just install the Office Insider build and get early access to the new Office innovations. Tell us what you think, your feedback will make Office great for users worldwide. Office Insider is available on Windows (desktop and mobile), Mac and Android.
Join Office Insider as a subscriber and get first access to the latest Office features and experiences.