Office 365 is a line of subscription services offered by Microsoft, as part of the Microsoft Office product line. The brand encompasses plans that allow use of the Microsoft Office software suite over the life of the subscription, as well as cloud- based software as a service products for business environments, such as hosted Exchange Server, Skype for Business Server, and SharePoint among llaborate for free with online versions of Microsoft Word, PowerPoint, Excel, and OneNote. Save documents, spreadsheets, and presentations online, in OneDrive. This offline installer comes in handy, especially, if you have purchased Office 365 Personal which allows you install Office 365 on up to five computers. We can deploy Office 365 apps ( Word, Excel, PowerPoint, Outlook, etc.