A spreadsheet is two dimensional.
What if each cell could have a stack of data in it? Then you have three dimensions and you can still conceptualize this as a human that walks around in three-space.
Now imagine each of those cells has a stack of data the mind fuckery begins.
Each database table is just two dimensional the relational part is how you add dimensionality or one-to-many relationships not possible in a spreadsheet.
(I also edited my earlier reply, but too slowly for this thread).
I don't know what the fuck you're talking about and I"ll thank you to stop making me feel stupid
now if you'll excuse me, I'm out of food and must improvise