A Microsoft file hosting and synchronization service.
Greetings!
This is Tin, I'm here to help. Just to confirm, do you want to check your MS Office subscription is active or not? Or you want to check your MS Office apps if it's already activated?
You can check the status of your license from logging in your MS Account to https://account.microsoft.com/services
If it's active or valid, it should be shown from there.
In case the MS Office app is already installed and you just wanna check if it's activated, you can click File Tab then Account, you'll see there if it's activated. If it's not yet activated, please just sign in the account where your MS Office is associated and it should activate your MS Office apps.
Thanks,
Tin