Microsoft Corporation
• One-time purchase for a computer (Not Mac).
• Classic 2013 versions of Word, Excel, PowerPoint and Outlook, in addition to Publisher, Access, Skype for Business and the ability to store documents in OneDrive or locally on your computer.
• Licensed for home and commercial use. All languages are included.
• Compatible with Windows 7, 8, 8.1 and 10*
* Go to https://office.com/systemrequirements for compatible versions and for other functional requirements.

pshumsky (verified owner) –
This worked by following the directions in the READ.Me
You have to open an individual word or excel and choose enter pass key rather than registering with an e-mail.