So I have an Excel workbook that stores multiple sheets of data, and I've been using basic HTML, CSS and JS code to make charts out of the data, which is read using the XLSX library for Javascript, and displaying them on a website.

The problem is that this file is stored locally on my computer, and I need it to be stored somewhere where it can still be accessed by Javascript functions while also being somewhere it can be updated by users with no code experience (i.e. office workers that just know how to use Excel).

Currently, as I said, the code is using a fetch function to get the file as shown:

const workbook = XLSX.read(await (await fetch("./File.xlsx")).arrayBuffer());

This works wonderfully but I just wanted to know if there was a quick and free way to store this data such that it can be accessed even when I host it using Netlify. I've tried using Google Sheets to store it but I can't get the authentication for the file to work.

Like I said, I'm only using the basic HTML, CSS and JS functionalities, and I'd like not to add too many complex libraries or change my current code too much, so any alternative to getting the fetch line above to work would be the most appreciated. Any suggestions are welcome though.