To get MS Office back, assuming it was a genuine version (apologies but had to say it) go to microsoft.com and log in to your account and do a reinstall.
I am not employed by Samsung nor do I receive any remuneration as a Samsung Members Star.
I never bought one it was on the laptop already. Don't think it was the full version but I could do what I needed. I can't do anything now including font or layout editing
If Office came pre-installed on your Samsung laptop when you bought it (e.g., Office Home & Student), you might need to check your pre-installed apps or look for Office in the Microsoft Store app under your "Library" tab to reinstall it.
I am not employed by Samsung nor do I receive any remuneration as a Samsung Members Star.