Portal.office.com is an official website that enables users to access their Microsoft Account and its features such as emails, calendars, and much more. Also, it lets users access the services provided by Microsoft, i.e., Word, Excel, etc., and perform various tasks. Along with this, the users can also see the sign-in options to access their accounts. Click the provided link to Get more Info. :-- https://sites.google.com/view/portalofficecom-guide