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SUBMIT YOUR IDEAI learned something new today! CharFromInt is so useful!
Try the solution @dsandmann provided, which is very concise and easy to understand. https://community.alteryx.com/t5/user/viewprofilepage/user-id/277938
That's how I did mine initially. After revisions I did it in three regular formulas,
Not too bad if you know the right tool to start with.