Hi Rory,Welcome to the forum.
I have no idea what you mean by that - could you clarify (bearing in mind forum rule #6)?
We have a team who uses a conversion tool to decrypt.Do you know how they are encrypted/decrypted?
=AI("is this a known name (please answer with yes or no)?:"&A2)
=AI("please tell me if this list (separated by ';') of words are known names or not in a sequence of yes and no with the same size as the input array:"&D2)