We often hear: " Will Office run on my Windows 7 PC? " or " Can I install Office on Window 10? We sure wish Microsoft had official easy- to- read compatibility charts! Office 365 is a cloud- based subscription service that brings together the best tools for the way people work today. By combining best- in- class apps like Excel and Outlook with powerful cloud services like OneDrive and Microsoft Teams, Office 365 lets anyone create and share anywhere on any device.