Installation
  1. Sign in to your Microsoft Account at office.com
  2. Click Install Office and click Office 365 apps
  3. Open the downloaded installation file and Run
  4. Wait for the installation to complete and you are done!

Sign-In to desktop application

After installation is done, you might be required to sign in to your account on the desktop application to activate the license before you are able to save your files.

  1. Open any Microsoft Desktop Applications (Word, Excel, PowerPoint) in this case, I'll be using Microsoft Word for an example.
  2. Click on File (At the top right corner) > Account (At the left panel as shown)

  3. Ensure you are signed in, else click Sign In and enter your credentials when prompt.