With your Microsoft account, you can use the free Office Online apps in your web browser. The documents you create are stored in OneDrive, so you can access them from anywhere.
To get started using an online app, select its icon.
Note: Don’t worry if you don’t see online apps for Access, Project, Publisher, or Visio. These apps aren’t available online in Office.com and won’t show up in this list, even if you buy them. You can install the Office apps you’ve bought by selecting the Install Office button at the top of your screen. For more info, see Where's my app?