Office 365 requires Windows 7 or 8. Mac users need OS X 10.6 (or later). You'll also need Internet access to install Office 365 and to activate and manage your subscription (once a month). You'll need a compatible browser.Can I get Microsoft Office 365 for free?
Use the trial to try out Office 365 for a month. You can use Office for free for one month by downloading the Office 365 trial. This includes the Office 2016 versions of Word, Excel, PowerPoint, Outlook, and other Office programs. Office 365 is the only version of Office with a free trial available.How do I log in to my Office 365 account?
Open the Office app. On the Account screen, tap Sign In. On the Sign In screen, type the email address and password you use with Office. This might be the personal Microsoft account you associated with Office, or the username and password you use with your work or school account. Open the Office app. On the Recent screen, tap Sign In.