Accept the license agreement. Your software is now ready to use. Troubleshooting Tips
Before downloading the software, you must associate the 25-character key with your Microsoft account. Go to office.com. Microsoft Office 365 Install With Product Key
You do not need to enter the product key into the apps themselves. Activation happens via your login. Open any Office app (like Word or Excel). Accept the license agreement
In the window, enter the email and password you used in Step 1. Microsoft Office 365 Install With Product Key