Things you would consider quite irresponsible to be done in Excel, is done in Excel regardless. Indeed, that annual financial report of a Fortune 500 boils down to financialresults_v2_nowaitonemorechange_final_FINAL_withcomments_official.xlsx"
My g/f works for one of the leading ERP providers. I won't tell you which one but it starts with an S and ends with AP. They're dogfooding their own ERP but employees prefer Excel.
It's like gravity, just stop resisting.