I have a similar odd thing that I can only descibe as being fascinated with articulation.

Robots, skeletons, suits of armor, dolls, gears, some insects.

Something made of distinct pieces moving in articulated ways, it's a downright core desire.

I also like things separated but still connected like by a string, cable, or wireless. Like kites, security cameras, or drones.

I used to have a toy fishing rod with a rubber fish at the end that I love just throwing in the lake and realing back in. It just tickles my brain.

And more similar to yours, I really love spreadsheets! They can do so many things!