This is where the AI hype bites people.
A great use of AI in this situation would be to automate the collection and checking of data. Search all of the data sources and aggregate links to them in an easy place. Use AI to search the data sources again and compare against the spreadsheet, flagging any numbers that appear to disagree.
Yet the AI hype train takes this all the way to the extreme conclusion of having AI do all the work for them. The quip about 98% correct should be a red flag for anyone familiar with spreadsheets, because it’s rarely simple to identify which 2% is actually correct or incorrect without reviewing everything.
This same problem extends to code. People who use AI as a force multiplier to do the thing for them and review each step as they go, while also disengaging and working manually when it’s more appropriate have much better results. The people who YOLO it with prompting cycles until the code passes tests and then submit a PR are causing problems almost as fast as they’re developing new features in non-trivial codebases.