The problem is that politicians don’t understand cyber security, whta their asking is basically the equivalent of closing the front door of a house and leaving the backdoor open. It was already proven to be a bad idea, eternalblue is a good example.

But you use the same column correct? and the data that is messed up is the same type? Unless the data that is messed up is very hard to detect using a script, it should be possible.

I suggest making a script to fix it, rather than fix it manually. It is very easy to use, so basically program then export to excel then run officescript. Also don’t tell anyone you made a script, tell them you are doing it manually.

https://learn.microsoft.com/en-us/office/dev/scripts/overview/excel