$16bn health agency managed finances with Excel spreadsheet.

Probably should get a dedicated ERP system, mainly to just have official support.

But anybody in finance (like me) knows that everybody from low level accounting assistants, to CBOs use excel daily, even if they have an ERP system. For instance, the one I am using is complete shit with outrageous inexcusable 'features' (can't even describe them because they sound made up). So we all just export data to excel so we can format the reports/data into an actual useful format.