The big difference between the a relational database and a spreadsheet is that “can do” clause in your sentence. In a relational database they MUST have those constraints to be related.
In the Microsoft ecosystem Access is the relational database. Excel is a table manager with fancy features.
You seem to think that Trump didn’t add access keys for his idols the instant he got back in the door. He loves Putin and Kim Jun Il. They are like, his favorite drinking buddies.