A previous company I worked at made YouTube videos for content marketing purposes. For some reason that no one could explain by the time I started there, the first couple videos in the account were random, basic Excel tutorials. Nothing fancy. Just things like using the Cell Formatting dropdown or doing a VLOOKUP.
Those videos were 5+ years old by the time I left. And in their worst week, a single one of those Excel videos got more views than the entire view count of every non-Excel video combined. It was crazy.