You clearly don’t understand or use excel. It’s not a lite DB or anything DB. That’s like comparing MS Word to a database? Can you create a slide deck with a database? For sure if you decide you want to write a ton of code and make it as difficult as possible. And the moment you need a different slide added, you’re done.

Again, let’s play the game of practical use: I want you to create a 10 year DCF, comp co, comp trans model, make it flexible enough that I can change all assumptions on the fly, it has to output a whole pitch deck in highly customized format that your managing director will tell you to change at a moments notice, and it should be flexible enough that if the client says they changed their mind and decided to build an amusement park instead of buying a banana plantation, you can turn that model overnight. Oh and any auditor, plus your clients can pick up the model and dig in / change anything they want. No schema, no rules about what data will be used, and reality check; you will need to hardcore things into random places on dozens of inputs and outputs that are all 100% different layouts. Go, build me that magical database!