Sorry but I'm still slightly confused.

Would you mind sharing the user flow starting from business folks with their calculations in a spreadsheet?

I'm guessing if I write a front-end spreadsheet like interface, grab their input, have LibreOffice process it, then spit it back out into the interface, it would essentially be my very own spreadsheet program on top of LibreOffice?

I'd really love to learn what's the benefit of making that abstraction because I've been on both sides (business and tech).