Can attest to this. Some of the things I've seen excel spreadsheets contorted to do horrify me. I once got spreadsheet dumped on me to debug because it wasn't

Can attest to this. Some of the things I've seen excel spreadsheets contorted to do horrify me. I once got spreadsheet dumped on me to debug because it wasn't working. A colleague used the spreadsheet to 'generate' interest rates that were then input into a mainframe. Dug into the VBA spaghetti mess, turns out this 15 year old script that took 15 minutes to run originally hit a bunch of Oracle/External APIs and performed calculations was now just copying the rates in from a csv file on a shared drive. The error was caused by an excel formula ticking over a new year causing it to look for a directory it did not need to access that didn't exist. I thought it was pretty funny until I heard that the entire asset finance business had been unable to write any loans for days because of this.