Office 2010 suites include applications such as Word, Excel, PowerPoint, and Outlook; they are available as a one-time purchase for use on a single PC. Office 365 plans include 2016 versions of these applications plus other services that are enabled over the Internet, including online storage with OneDrive and Skype minutes for home use. With Office 365 you get the full, installed Office experience on PCs, Macs, tablets (including iPad® and Android™ tablet) and phones. Office 365 plans are available as a monthly or annual subscription..
This page describes the general differences between various recent versions if Microsoft Excel. It is not a comprehensive list of changes, only the major differences.
How do I know if my computer can run Office 365? You don’t need to be connected to the Internet to use Office applications, such as Word, Excel, and PowerPoint, because the applications are fully installed on your computer. However, Internet access is required to install and activate all the latest releases of Office suites and all Office 365 subscription plans. For Office 365 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.