Built a platform that generates Excel sheets when connected via API

Hi. I built a platform where Excel sheets are custom made when connected to a API platform. Stripe, PayPal, Citibank, QuickBooks, etc. I don't know how good it will work but I wanted to post here to see if anyone wanted to give it a spin and provide some feedback.

Because I don't have enough data to feed it, its hard to tell if it is doable.

the site is "excelbolt.web.app". The premise is to run custom templates and takes out the work of manually manipulating raw data, formatting it, editing it, as well as manually manipulating pivot tables & conditioning functions.

A lot of people aren't good at excel so i thought I make it a bit easier for them.

Any feedback is helpful. I'm the only person that put it together and plan on rolling out a iOS, Desktop management and Android edition after everything is working.

Its not really self-promo btw. its still in test mode, ive completed a lot of the work btw but im just one person.