Hi there and welcome John
Can you tell me please from where did you purchase Office from? And which version was it?
ok, then you can download it again John
To do this, click on my link below
Click on Sign in and sign in with the account you used when purchasing it initially.
Once done, you will see your orders, click on this and you will see your Office Purchase with the option to download it.
Download it to your computer and you can then install it again
Let me know the results please