AI for Spreadsheets: 5 Beginner Prompts

Three things the model needs first

Before you type your first prompt, it helps to understand how AI looks at a spreadsheet. Whether you are using ChatGPT, Google Gemini, or Microsoft Copilot, these tools work best when your data is tidy and structured. If you are uploading a file or asking an AI to analyze your data, try to set it up with these three simple rules in mind:

Use descriptive headers: Put clear, plain-language column names in the very first row of your sheet.
Keep one record per row: Avoid empty rows or columns that split your data into fragments.
Avoid multiple unrelated tables: Keep your data focused on one main topic per sheet rather than scattering different tables across a single tab.

If you are just getting started with writing instructions for AI, you might also want to read our guide on how to write your first prompt.

The five prompts

Here are five practical prompts you can copy, paste, and customize. They work in the sidebar assistants of Google Sheets, Microsoft Excel, or the main ChatGPT window.

1. The "Build from Scratch" Prompt

If you have a blank screen and need a starting template, you can ask the AI to build the structure for you.

"Create a table that tracks weekly staffing. Create columns for date, name, shift (AM or PM), and notes."

How to use it: In Google Sheets with Gemini, open the "Build" panel on the right and type this prompt. Gemini will generate a template outline. You can review it and click "Insert" to place it directly into your sheet. In ChatGPT, you can ask for this structure and copy the resulting table into your spreadsheet program.

2. The "Formula Explainer" Prompt

Inheriting a spreadsheet from someone else can be confusing, especially if it contains long, nested formulas. You can use AI to translate those formulas into plain English.

"Explain this formula and tell me what it does step-by-step: =IF(B5<0,"Not valid",B5*1.05)"

How to use it: If you are using Copilot in Excel, you can simply select a cell containing a formula, click the Copilot sparkle icon next to the cell, and choose "Explain this formula" from the dropdown menu. If you are using ChatGPT or Gemini, paste the formula directly into the chat window and ask for an explanation.

3. The "Error Fixer" Prompt

Formula errors like #VALUE!, #NULL!, or #DIV/0! can be frustrating to troubleshoot. You can ask the AI to find the mistake and suggest a correction.

"Why am I getting an error in cell B145? Explain the formula chain and propose a fix."

How to use it: In Google Sheets, if a formula shows an error, you can hover over the cell and click "Fix." Gemini will analyze the issue and suggest a correction. In ChatGPT, you can paste the broken formula along with a description of your data columns to get a corrected version.

4. The "Data Summarizer" Prompt

When you have a large table of numbers, it can be hard to see the big picture. You can ask the AI to find the main trends for you.

"Summarize trends across these three tabs and call out anything unusual."

How to use it: Upload your spreadsheet (.xlsx or .csv) to ChatGPT or open Gemini in the Google Sheets sidebar. Ask the tool to summarize the data. It can look at the rows and columns to summarize trends and highlight outliers.

5. The "AI Function" Prompt

In Google Sheets, you can actually write AI prompts directly inside a cell using a special formula. You can use this to categorize text or analyze sentiment.

=AI("Categorize the customer inquiry as a compliment, exchange request, or return request.", C2)

How to use it: If you have an eligible Google Workspace plan, type `=AI()` or `=Gemini()` into a cell, followed by your prompt in quotation marks and the cell reference. Select the cell and click "Generate and Insert." You can even drag the corner of the cell down to fill the rest of the column automatically.

Four helpful tips

Once you feel comfortable with the basics, you can try these four tips:

Be specific about what to preserve: When asking an AI to update an existing sheet, tell it exactly what to change and what to leave alone. For example: "Update assumptions on the Inputs tab only. Don't change the formatting."
Ask for a plan first: Before letting an AI make large edits to a complex workbook, ask it to outline its steps first. You can say: "Before editing, outline exactly which tabs and ranges you will modify."
Use the "@" symbol to reference files: In Google Workspace, you can type "@" in your prompt to select from suggested files or type a file name, allowing the AI to pull context directly from other documents.
Start with a question you already know the answer to: This is a great way to test the AI's accuracy. If the tool correctly calculates a number you already know, you can feel more confident using it for more complex tasks. For more on this, see our guide on how to fact-check an AI answer.

Quick answers

Can ChatGPT edit my Excel files directly?

Yes. If you use the ChatGPT desktop app and install the ChatGPT for Excel add-in, you can use Codex to work directly with an open Microsoft Excel workbook. It can inspect and update sheets, formulas, values, formatting, and charts in your active workbook.

Do these AI functions have any limits?

Yes. For example, the `=AI()` function in Google Sheets is limited to text outputs and cannot access your entire Google Drive. It also has generation limits; you can select multiple cells to generate, but only the first 350 selected cells will process at one time.

Is my spreadsheet data kept private?

It depends on your settings and your plan. If you are using enterprise or school accounts, your administrator often has privacy controls in place. For personal accounts, always check your tool's data control settings to manage how your uploads are used to train future models.

Keep going

The best way to learn is by doing. Open a blank spreadsheet today and try typing a simple prompt to build a basic tracker. If you want to explore more ways to use AI to save time, check out our guide on AI at Work: 5 First Wins.

Sources and research notes

Research checked 2026-09-24. Source comparison; this is a research synthesis. Findings attributed to other reviewers remain their work.

What the evidence does not establish

AI tools can make mistakes and generate incorrect formulas or data; always verify outputs before relying on them.
The AI function in Google Sheets has short-term and long-term generation limits, and only the first 350 selected cells will generate at one time.
ChatGPT's data analysis environment cannot make external web requests or API calls.