The most simple way to understand this is that databases are made to be proof to failures. When you write a single value into the database a lot of things are happening behind to ensure something called ACID, by other hand, excel documents are a monolith file, doesn't have a mecanism behind to rely and ensure the integrity of the data.
Edit: changed the link to ACID.





I love Silent Hill because of that, just sound of steps while there is wind at the background, while you walk you can hear how your radio starts to play static noise, and then, you are in a room full of flesh