If you don't think Excel is widely used for all sorts of meaningless crap across a wide array of corporate and non-corporate jobs you're being willfully ignorant.
Corporate world sure, everywhere else is a maybe sometimes, which is a long way from "almost everyone", which is just ridiculous. That comes from people who live in a corporate world and thinks everyone else does too. Not. There are tons of people in the non-corporate world who don't even need a spreadsheet for anything. And some who do, that don't use Excel.