How to organize a version control system for Excel files?

Question

excel

How to organize version tracking of Excel files?
I do not want to teach users the basics of Mercurial (or Git, Subversion) - there will be whims, they say, how many actions are needed to save the file. I left this option for last.
Are there any easier options?
Online service or local - it doesn't matter.

Answer 1

https://drive.google.com/
From Excel we move on to the online editor.

Answer 2

Google drive, Dropbox, Sharepoint. Or write your own macro. It is easier to use a ready-made solution, for example. such an add-on https://xltools.net/ru/version-control-for-vba-macros/. Checks in changes to sheets and VBA projects, versions in git repository locally.