As part of signing up for a trial or purchasing Office, you will be prompted to sign in with a Microsoft account.
 
 

Microsoft office professional 2016 purchase free.Microsoft Project Professional 2016 (64-Bit)

 
With a Microsoft Office product key, you can easily download the installation files directly from Microsoft. Learn how to get it now! Get started with Office for free. Students and educators at eligible institutions can sign up for Office Education for free, including Word, Excel. Collaborate for free with online versions of Microsoft Word, PowerPoint, Excel, and OneNote. Save documents, workbooks, and presentations online.