I think the current subtrends of things like a resurgence of interest in mechanical watches, fountain pens, steampunk, etc, are sort of a large excursion on a dampening social problem: that technology is too far beyond our comprehension.
Can you even even tell what network stack got you this packet?
How about the protocols that got it from the network to your screen?
How about the quantum mechanics of the phosphors that pushed out the photons?
There are certainly techno-luddites/visionaries who are running their own email servers, but it's a pretty hostile environment for personal email servers. Ignoring the spam, just getting the existing big boys to trust you can be humiliating exercise in futility.
Can I get by without Excel? Sure. Google Sheets? Sure. No spreadsheet at all? Gonna be hard.