Office plans include premium versions of these applications plus other services that are enabled over the Internet, including online storage with OneDrive and Skype minutes for home use. Office plans are available as a monthly or annual subscription. Learn more. How do I know if my computer can run Office ? See system requirements for compatible versions of Windows and macOS, and for other feature requirements. Is internet access required for Office ? However, Internet access is required to install and activate all the latest releases of Office suites and all Office subscription plans. For Office plans, Internet access is also needed to manage your subscription account, for example to install Office on other PCs or to change billing options. Internet access is also required to access documents stored on OneDrive, unless you install the OneDrive desktop app.