L191 · AI at work · 3 min

Excel formulas with AI

Describe what you want the cell to do in plain words, and a chatbot can write the formula and explain it line by line.

01 · The idea

Most people know what they want from a spreadsheet and get stuck on the syntax. "Add up sales for Hanoi in March" is easy to say and fiddly to type as a formula.

A chatbot is good at this translation. Tell it which columns hold what, which row the data starts on, and what result you expect. It will usually suggest a formula such as SUMIFS or XLOOKUP and explain each part.

Always test the formula on a few rows where you already know the answer. Formulas can fail without any warning: a wrong range or a stray space in a name gives a number that looks fine and is wrong.

Ask for the explanation as well as the formula. After a few weeks you will start writing simple ones yourself, and you will spot the AI's mistakes faster.

02 · Think of it like this

It is like asking a colleague who knows Excel well. You explain the goal, they type the formula, and you check the answer against a total you already trust.

03 · Do it now

04 · Quick check

The chatbot gives you a formula and the result looks reasonable. What should you do next?