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How to Use AI with Excel: 6 Prompts for Beginners

Stop searching for formulas. Describe what you want in plain language and let AI write it — with copy-paste prompts for the 6 most common spreadsheet jobs.

8 min read · Updated 2026-08-18

Step 1

Always Describe Your Columns First

This is the one habit that separates prompts that work from prompts that waste your time. The AI cannot see your spreadsheet — it has no idea what is in column C. If you do not tell it, it will guess, and the formula it gives you will point at the wrong cells. Start every spreadsheet prompt by naming your columns and saying which row your data starts on.

The example sheet used throughout this guide
ABCD
1DateProductUnitsPrice
22026-03-01Keyboard1224.90
32026-03-01Mouse3011.50
42026-03-02Keyboard824.90
52026-03-02Monitor3149.00
Row 1 holds the headers, so the actual data starts on row 2.
Prompt to copyI have an Excel sheet. Column A = Date, column B = Product, column C = Units, column D = Price. Row 1 is the header row and the data runs from row 2 to row 500. Answer with the formula only, and tell me which cell to paste it into.
Why the last sentence matters: without it you get three paragraphs of explanation around the formula. Asking for "the formula only" plus the target cell gives you something you can paste immediately.
Step 2

Describe the Formula in Plain Language

You do not need to know whether you want SUMIF, SUMPRODUCT or a pivot table. Describe the result you want in normal words and let the AI pick the function. Say what you want calculated, from which columns, and under what condition.

Adding a Total column
fx=C2*D2
ABCDE
1DateProductUnitsPriceTotal
22026-03-01Keyboard1224.90298.80
32026-03-01Mouse3011.50345.00
42026-03-02Keyboard824.90199.20
52026-03-02Monitor3149.00447.00
Paste the formula into E2, then drag it down.
Prompt to copyUsing the columns I described, I want a new column E called Total that multiplies Units by Price for each row. Then I want a single cell that shows the total revenue for keyboards only. Give me both formulas and tell me where to paste each one.
The pattern to reuse: "I want [result] from [columns] where [condition]." That sentence covers most of what beginners ever need from a spreadsheet.
Step 3

Paste a Formula You Do Not Understand

This works in the other direction too, and it is the fastest way to learn. If you inherited a spreadsheet full of formulas nobody documented, paste one in and ask what it does. Ask for a plain-language explanation rather than a technical one.

Prompt to copyExplain what this Excel formula does, in plain language, as if I have never used Excel: =SUMIF(B2:B500,"Keyboard",E2:E500). Then tell me what would break it.
Also useful for errors. Paste the formula together with the error message:
"This formula returns #N/A. Here is the formula: [paste]. My lookup column contains text and the other sheet contains numbers. What is wrong and how do I fix it?"

Giving the AI the error code and what your data looks like turns a guess into a diagnosis.
Step 4

Clean Up Messy Data

Inconsistent capitals, stray spaces and dates typed five different ways are the most common reason a formula "does not work" — the data is fine to a human and unreadable to Excel. Describe the mess and ask for the cleanup steps.

Before — the same customer three times
ABC
1CustomerCitySignup date
2 ana lópez madrid01/03/2026
3ANA LÓPEZMadrid2026-03-01
4Ana LopezMADRID1 Mar 2026
To Excel these are three different customers in three different cities.
After
ABC
1CustomerCitySignup date
2Ana LópezMadrid2026-03-01
3Ana LópezMadrid2026-03-01
4Ana LópezMadrid2026-03-01
Prompt to copyColumn A has customer names with inconsistent capitals and extra spaces at the start and end. Column B has city names in mixed capitals. Column C has dates in three different formats. Give me formulas to standardise all three into clean columns, and explain each one in one sentence.
Tip: clean into new columns rather than overwriting the originals. If something goes wrong you still have the raw data, and you can delete the helper columns once you have pasted the results back as values.
Step 5

Split One Column Into Two

Full names in one cell, addresses that should be street and city, product codes that hide a category — splitting a column is one of the most common beginner tasks and one of the least obvious to do by hand.

Before
A
1Full name
2Ana López
3Marc Ferrer
4Lucía Sanz
After
fx=TEXTBEFORE(A2," ")
ABC
1Full nameFirst nameLast name
2Ana LópezAnaLópez
3Marc FerrerMarcFerrer
4Lucía SanzLucíaSanz
Prompt to copyColumn A contains full names as "First Last". I want column B to contain only the first name and column C only the last name. Give me the formulas. Also tell me what happens if someone has two surnames, and how to handle that case.
Always ask about the edge case. The second sentence in that prompt is what stops the formula breaking on the one row that does not match the pattern — and in a real customer list, that row always exists.
Step 6

Summarise Without Learning Pivot Tables

Pivot tables are the thing beginners avoid longest. You can skip them entirely at first: describe the summary you want in words and ask for a formula-based version, which is easier to understand and easier to fix when it breaks.

The summary you are asking for
fx=SUMIF($B$2:$B$500,G2,$E$2:$E$500)
ABC
1ProductUnits soldRevenue
2Keyboard20498.00
3Mouse30345.00
4Monitor3447.00
Prompt to copyFrom my sales data, build me a summary table listing each unique product once, with total units sold and total revenue next to it. Use formulas rather than a pivot table, and tell me how to get the list of unique product names automatically.
When you are ready for pivot tables, ask for the click-by-click version instead:
"Give me the exact steps to build a pivot table from this data showing revenue by product by month, in Excel for Windows. Number each click."

Asking for numbered clicks and naming your Excel version avoids instructions written for a different menu layout.
💡 The whole guide in one line: tell the AI your columns, describe the result in plain words, and ask for the formula plus the cell to paste it into. Everything else is a variation on that.

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