The thing really missing from multi-megabyte excel sheets of business critical carnage was a non-deterministic rewrite tool. It'll interact excitingly with the industry standard of no automated testing whatsoever.

I 100% believe generative AI can change a spreadsheet. Turn the xslx into text, mutate that, turn it back into an xslx, throw it away if it didn't parse at all. The result will look pretty similar to the original too, since spreadsheets are great at showing immediately local context and nothing else.

Also, we've done a pretty good job of training people that chatgpt works great, so there's good reason for them to expect claude for excel to work great too.

I'd really like the results of this to be considered negligence with non-survivable fines for the reckless stupidity, but more likely, it'll be seen as an act of god. Like all the other broken shit in the IT world.