Excel can be it's own kind of awful, but using it with other people makes me want to jump off a bridge onto a rusty bed of nails. They move cells around, change the labels on columns, color cells with no benefit, change half a sheet to comic sans, they fucking send you back "bullshit-v1.0-good.xlsx” then ”garbage name v0.3_gooder.csv". Jesus fuck. The shitty thing has built in version control you ignorant fuck!