Prompt Library

Copilot Prompts for Excel That Start From Your Pasted Table

15 copy-paste prompts

Formulas, cleanup, and pivot explain inside Microsoft 365 Copilot. Paste the table, name the sheet goal, and tag gaps as [VERIFY]. No invented rows or totals.

In short: This page contains 15 copy-paste ready prompts, organized into 5 categories with a description and pro tip for each. The first 5 prompts are free instantly, no signup needed. Hand-curated and tested by the AI Academy team.

Louis Corneloup
By Louis Corneloup · Founder, Techpresso
Last updated ·Hand-curated & tested by the AI Academy team

Formulas from a pasted table

3 prompts

Sum column with a named rule

1/15

✨ What it does

Copilot writes one sum formula for [COLUMN NAME] with [CONDITION] and explains each part. Paste the formula into Excel, then confirm every column name matches your sheet.

I pasted a table below. Write one Excel formula to sum [COLUMN NAME] where [CONDITION]. Show the formula in a code block, explain each part in one line, and say [VERIFY] if a column name is missing. [PASTE TABLE]

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Pro tip: Name the column exactly as it appears in row 1. Copilot cannot see headers you did not paste.

VLOOKUP or XLOOKUP pick

2/15

✨ What it does

Copilot picks XLOOKUP or VLOOKUP for your [KEY] lookup and flags duplicate keys as [VERIFY]. Test the formula on two rows you know before you fill down.

From this pasted table, I need to look up [KEY] in [LOOKUP COLUMN] and return [RETURN COLUMN]. Say whether XLOOKUP or VLOOKUP fits, write the formula, and flag [VERIFY] if the key is not unique. [PASTE TABLE]

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Pro tip: If keys repeat, ask for a helper column or an INDEX MATCH pattern. Do not assume uniqueness.

Percent change column

3/15

✨ What it does

Copilot writes a percent-change formula rounded to [N] decimals and lists blank rows as [VERIFY]. Insert the column, then fix blanks before you share the sheet.

Add a formula column for percent change from [OLD COLUMN] to [NEW COLUMN]. Paste-ready formula only, round to [N] decimals, and list any row where either cell is blank as [VERIFY]. [PASTE TABLE]

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Pro tip: Percent change on blank cells looks like a real trend. Fix blanks first or filter them out.

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Cleanup and formatting

3 prompts

Trim and dedupe steps

4/15

✨ What it does

Copilot lists trim, date, and dedupe steps for your paste and tags risky steps as [VERIFY]. Run the steps in order on a copy of the file, not the live workbook.

I pasted messy data below. List Excel steps (not VBA) to trim spaces, fix [DATE COLUMN] to ISO dates, and remove duplicate rows on [KEY COLUMNS]. Tag any step that needs my confirmation as [VERIFY]. [PASTE TABLE]

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Pro tip: Always work on a duplicate sheet. Copilot does not undo a bad dedupe.

Split one column into two

5/15

✨ What it does

Copilot gives split steps or formulas for [COLUMN] and marks inconsistent delimiters as [VERIFY]. Check the odd rows it lists before you split the whole column.

Split [COLUMN] on [DELIMITER] into [NEW COL A] and [NEW COL B]. Show the formula or Text to Columns steps for Excel. If the delimiter is inconsistent, say [VERIFY] and show the odd rows. [PASTE TABLE]

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Pro tip: Paste five sample rows that include the messy cases. A clean sample hides the real problem.

Standardize category labels

6/15

✨ What it does

Copilot builds an original-to-fixed mapping table from your paste and flags invented labels as [VERIFY]. Review the mapping before you apply a SUBSTITUTE chain.

These category values should map to a short allowed list: [ALLOWED LIST]. From the paste, build a two-column mapping table (original, fixed) and flag anything not in the paste as [VERIFY]. [PASTE TABLE]

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Pro tip: If your allowed list is long, paste it in the prompt. Copilot will not guess your taxonomy.

Pivot explain

3 prompts

Explain an existing pivot

7/15

✨ What it does

Copilot explains rows, columns, values, and filters on your pivot and lists three gaps. Use those gaps to decide if you need a different pivot layout.

I pasted a pivot table below. In plain English, explain what rows, columns, values, and filters mean. List three questions the pivot cannot answer without raw data. Tag guesses as [VERIFY]. [PASTE PIVOT]

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Pro tip: Paste the pivot plus one line on what decision you are trying to make.

Suggest a pivot layout

8/15

✨ What it does

Copilot suggests row, column, and value fields to answer [QUESTION] using only pasted columns. Build that pivot in Excel, then refresh if the paste changes.

From this raw table paste, suggest one pivot layout to answer: [QUESTION]. Name row fields, column fields, value field, and aggregation. Do not invent columns that are not in the paste. [PASTE TABLE]

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Pro tip: One question per pivot. Kitchen-sink pivots confuse Copilot and humans.

Compare two pivot cuts

9/15

✨ What it does

Copilot compares pivot A and B for [AUDIENCE] and flags totals not visible in the paste. Pick one layout, then rebuild it yourself so you control the fields.

I pasted two pivot views of the same data: A and B. Compare what each emphasizes, where totals differ, and which view fits [AUDIENCE]. Mark any total you cannot see in the paste as [VERIFY]. [PASTE A] [PASTE B]

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Pro tip: If totals differ, one pivot likely double-counts. Ask Copilot to name the field causing it.

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Checks before you share

3 prompts

Find likely formula errors

10/15

✨ What it does

Copilot lists likely errors and mixed-type cells from your paste. Fix flagged cells in Excel, then rerun on the updated export.

Scan this pasted range for likely Excel errors: #DIV/0!, #N/A, mixed numbers and text in [COLUMN], and totals that do not match row sums. List cell addresses as [VERIFY] if the paste has no addresses. [PASTE TABLE]

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Pro tip: Export with visible row numbers if you want cell addresses, not just values.

Plain-language summary row

11/15

✨ What it does

Copilot writes five bullets for [AUDIENCE] using only pasted numbers and marks gaps as [VERIFY]. Read the outlier bullet against the raw rows before you email it.

Write a five-bullet summary of this table for [AUDIENCE]: biggest total, smallest total, one trend, one outlier, one gap marked [VERIFY]. Use only numbers from the paste. [PASTE TABLE]

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Pro tip: Name the audience. Finance and marketing will want different bullets from the same table.

Handoff note for a teammate

12/15

✨ What it does

Copilot writes a 120-word handoff from [NOTES] with one fragile formula called out. Send it with a link to the workbook, not a screenshot alone.

Write a 120-word handoff for [NAME] explaining this sheet: purpose [GOAL], key columns, one formula they must not break, and where the source file lives. Use only [NOTES]. Tag missing facts [VERIFY].

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Pro tip: If the source of truth is unclear, fix that before you ask for a handoff.

What not to do in Excel

3 prompts

Refuse to invent rows

13/15

✨ What it does

Copilot refuses to invent [MONTH] rows and offers placeholder steps tagged [VERIFY]. Keep the placeholders off shared dashboards until data lands.

Act as Copilot in Excel. I need you to add rows for [MONTH] we do not have yet. Refuse to invent numbers. Offer steps I can use when real data arrives, and say [VERIFY] on every placeholder.

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Pro tip: This is the prompt that stops fake forecast rows from going to leadership.

No macro without review

14/15

✨ What it does

Copilot lists manual steps and a commented VBA outline with delete paths marked [STOP]. Review with IT before you import any macro.

I asked for a macro to [TASK]. Instead, list manual steps first, then a VBA outline with comments only, and mark anything that deletes data as [STOP]. Do not write runnable delete code.

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Pro tip: Macros that delete or email need a human owner. Copilot is not that owner.

Sensitive columns check

15/15

✨ What it does

Copilot lists columns to drop before external share and marks uncertain ones [VERIFY]. Drop those columns in Excel, then repaste a redacted sample if you need more help.

Review this paste for columns that look like PII or secrets: [PASTE]. List column names to drop before sharing externally. If unsure, mark [VERIFY]. Do not copy values into the chat beyond what I pasted.

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Pro tip: Copilot guesses sensitivity from headers. You own the classification.

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Frequently Asked Questions

No. These prompts stay inside Copilot's official product. It stays inside Microsoft 365 Copilot for Excel. If a setting is missing on your plan, the prompt says so.
A current Copilot account. Some features sit on paid plans. The prompts still work as checklists if a feature is off.
Every prompt tells it to use only what you paste and to tag gaps as [VERIFY]. You still check the Excel sheet before you save it.
Yes to copy. Running them needs your Copilot account. Long files fit better on a paid plan.
No. It is a draft of your Excel sheet. You own the facts, the files, and whatever your job or policy requires.

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