I mean, in business contexts at least, Excel is what we end up using nearly all the time because it's ubiquitous. This doesn't mean there aren't issues with it;

I mean, in business contexts at least, Excel is what we end up using nearly all the time because it's ubiquitous. This doesn't mean there aren't issues with it; obviously it's nonFree, and it's notorious for making assumptions about data (see recent coverage of scientists literally renaming a gene (I think?) because Excel kept assuming it was a date or something). But Excel as a tool is on so many desktops that you can assume access, and so it gets used. I have a strong sense that this may be the biggest reason why no other format has taken over. It's "good enough" that it steals oxygen from any competing idea.