The dataset was growing and sheets were slowing down. Excel installed locally on a machine with good hardware is a pleasure to work with. As the team grew more and more people were asking for office licenses and like i said, we have colleagues who've been using excel for ages and they like to have 2-3 files open on multiple screens and work between files using references. It's just not as fast as using excel locally.

I'd like to add that we also had an issue with our clients using only excel and there were issues with calculations not working, not so often but with enough people making noise our management decided to get the subscription. I've been using sheets for years even as a student when i couldn't afford an office license.