Excel
Excel Formula and a Clean Sheet
Get the formula, a sample table layout, and the error cases to watch for - in Excel or Google Sheets.
The Prompt
excel-formula-and-a-clean-sheet.md
Help me solve this in a spreadsheet. Tool: {{tool}} What I am trying to calculate: {{goal}} Columns I have: {{columns}} Example rows: {{examples}} Constraints: {{constraints}} Deliver: 1. Recommended table layout (headers) 2. The formula(s) with A1-style references explained 3. A worked example using my sample rows 4. What breaks it (blanks, text-as-numbers, duplicates) 5. A Pivot / QUERY alternative if that is cleaner Prefer simple formulas over nested wizardry unless {{goal}} requires it.
Negative prompt
Included when you copy the prompt
Do not invent columns the user does not have. Do not use volatile or obscure functions when SUMIF/XLOOKUP/Pivot would do. Do not skip the worked example or the failure cases. Do not assume Excel 365-only functions when {{constraints}} say older Excel. Do not dump multiple competing approaches without recommending one. Do not invent sample numbers that contradict {{examples}}.
Fill in your details below - this prompt updates as you type, then copy it.
Fill in your details
0 of 5 filled. Preview updates as you type - then copy the finished prompt (negative prompt included when present).
excel-formula-and-a-clean-sheet.md
Prompt preview
Help me solve this in a spreadsheet. Tool: {{tool}} What I am trying to calculate: {{goal}} Columns I have: {{columns}} Example rows: {{examples}} Constraints: {{constraints}} Deliver: 1. Recommended table layout (headers) 2. The formula(s) with A1-style references explained 3. A worked example using my sample rows 4. What breaks it (blanks, text-as-numbers, duplicates) 5. A Pivot / QUERY alternative if that is cleaner Prefer simple formulas over nested wizardry unless {{goal}} requires it.
Examples
Example input
Tool: Excel What I am trying to calculate: Monthly commission = 8% of closed revenue per rep, only for deals with Status = Closed Won Columns I have: Rep, Deal, Amount, Status, CloseDate Example rows: Ana, ACME-12, 12000, Closed Won, 2026-08-03 Ana, Beta-9, 4000, Open, Sam, Gamma-2, 8000, Closed Won, 2026-08-11 Constraints: Must work in Excel 2016; no Power Query add-ins
What you should get
1. Layout: Keep raw deals on sheet Deals (A:E). On sheet Summary: Rep | ClosedWonRevenue | Commission. Unique reps in A2:A. 2. Formulas (Summary): B2: =SUMIFS(Deals!C:C,Deals!A:A,A2,Deals!D:D,"Closed Won") C2: =B2*0.08 3. Worked example: Ana Closed Won = 12000 → commission $960. Sam = 8000 → $640. Beta-9 excluded (Open). 4. Breaks: Amount stored as text; Status typos ("Closed won"); blank Rep; duplicate deal rows double-count. 5. Pivot alternative: Pivot on Rep, filter Status = Closed Won, sum Amount; add commission column = Amount*0.08 beside the pivot.
When to use this prompt
Use it when
- You need help with operators.
- You need help with finance.
- You need help with students.
Skip it when
- You only need a one-line ask with no constraints, format, or context.
- You cannot supply the fill-in details the template asks for.
- A different category or tool-specific workflow fits the job better.
How to get a good result
Done when
1. Layout: Keep raw deals on sheet Deals (A:E). On sheet Summary: Rep | ClosedWonRevenue | Commission. Unique reps in A2:A. 2. Formulas (Summary): B2: =SUMIFS(Deals!C:C,Deals!A:A,A2,Deals!D:D,"Closed Won") C2: =B2*0.08 3. Worked example: Ana Closed Won = 12000 → commission $960. Sam = 8000 → $640. Beta-9 excluded (Open). 4. Breaks: Amount stored as text; Status typos ("Closed won"); blank Rep; duplicate deal rows double-count. 5. Pivot alternative: Pivot on Rep, filter Status = Closed Won, sum Amount; add commission column = Amount*0.08 beside the pivot.
Common mistakes
- Leaving tool, goal, columns vague - the model then invents placeholders.
- Asking ChatGPT, Gemini, or Claude for a shorter answer after a long structured prompt - that throws away the format rules.
- Stopping when the first draft appears instead of checking it against the success criteria below.
FAQ
- What do I fill in before I copy this prompt?
- Replace these placeholders with your details: tool, goal, columns, examples, constraints. Required fields are marked on the page. The prompt text updates as you type.
- Which AI tools is this prompt written for?
- It works best with ChatGPT, Gemini, Claude. Copy the filled prompt and paste it into the tool you already use.
- What should a good result look like?
- 1. Layout: Keep raw deals on sheet Deals (A:E). On sheet Summary: Rep | ClosedWonRevenue | Commission. Unique reps in A2:A. 2. Formulas (Summary): B2: =SUMIFS(Deals!C:C,Deals!A:A,A2,Deals!D:D,"Closed Won") C2: =B2*0.08 3. Worked example: Ana Closed Won = 12000 → commission $960. Sam = 8000 → $640. Beta-9 excluded (Open). 4. Breaks: Amount stored as text; Status typos ("Closed won"); blank Rep; duplicate deal rows double-count. 5. Pivot alternative: Pivot on Rep, filter Status = Closed Won, su…
- What are common mistakes with this prompt?
- Leaving tool, goal, columns vague - the model then invents placeholders. Asking ChatGPT, Gemini, or Claude for a shorter answer after a long structured prompt - that throws away the format rules. Stopping when the first draft appears instead of checking it against the success criteria below.
Best for
- Operators
- Finance
- Students
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