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Describe what you need and get the Excel formula, with a test row to prove it

You know what you want the spreadsheet to do, not the formula. Describe it in plain words and get one that works, with a check.

Updated 17 Oct 2026

The prompt · ChatGPT

Write an Excel formula for me.

My columns: [paste the header row and 2–3 example rows, made up if the real ones are private]

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What you get (sample answer)

Put this in H2 (Microsoft 365):
=IF(AND(E2<>"", TODAY()-E2>30), F2, 0)
E = due date, F = amount. It shows the amount only when the invoice is more than 30 days late; otherwise 0.
Test row: due date 1 Jun, amount 500, today mid-August → H2 should show 500.
Common mistake: mixing text dates with real dates — format column E as Date first.

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