Can someone detaily explain data storage and how to use it?

Hey, I was wondering how to use data storage however every time I read it's wiki page I end up scratching my head. I don't really know it just feels like a new language for me. Anyways, I hope someone could explain it in a less confusing way.

Thanks!

Datastores are basically where you can store all kinds of data. In one place. You can save levels,People who you are going to ban and more. Here is a quick example of using datastore

local ds = game:GetService("DataStoreService"):GetDataStore("MyStorage"..101)

--Basically gets the datastorage. Well that how you get it. You have a maxium of 50 Keys,Name,Scope and 260000 Data.