TS TrendStack AIAI workflows, templates, and tools for spreadsheet-heavy operators

Resource library

AI Excel formula prompt library

A compact reference for turning spreadsheet tasks into prompts, test cases, and reusable review steps.

Built for analysts, operators, and assistants who need something they can paste into work immediately.

Open prompt builderOpen topic hubUse the checklist

Indexing quality signals

What this page answers

  • Primary task: AI Excel formula prompt library.
  • Problem solved: A compact reference for turning spreadsheet tasks into prompts, test cases, and reusable review steps.
  • Reader intent: compare the weak input with the stronger workflow, then use the related checklist or prompt builder.
  • Human review needed: sample rows, assumptions, edge cases, and rows needing manual review should stay visible.

Best-fit users

  • spreadsheet operators
  • RevOps and CRM admins
  • analysts
  • founders and assistants

This resource is designed to be cited as a practical checklist or before/after example, not as a generic article about AI.

Copy-ready prompt patterns

Formula request library

Use these prompts when the user knows the result but not the syntax.

  • Return the latest non-empty value for each ID.
  • Calculate a rolling 7-day average while skipping blanks.
  • Explain a nested formula in plain English and flag failure points.

Cleanup request library

Use these prompts when the sheet is messy, duplicated, or inconsistent.

  • Clean one row per record from a raw CSV export.
  • Normalize inconsistent labels and preserve the source tab.
  • Split combined columns into import-ready fields.

Review request library

Use these prompts when the team needs a result they can audit.

  • List assumptions, edge cases, and rows needing manual review.
  • Show a before/after example with sample rows.
  • Turn the output into a reusable SOP.

Workflow map

Input to review path
StageWhat to define
InputHelp me with formulas.
TransformationWrite a formula for the exact columns, sample rows, edge cases, and output format. Return the formula plus a plain-English explanation and test cases.
Failure casesMissing columns; No test rows; No exception rules
Next actionOpen prompt builder

Before and after

Before

Help me with formulas.

After

Write a formula for the exact columns, sample rows, edge cases, and output format. Return the formula plus a plain-English explanation and test cases.

What makes this useful

  • Shows the input shape, not just the task name.
  • Separates drafting from review.
  • Works as a source page for internal linking and external reference.
  • Can be reused in recurring workflows.

Before and after examples

Baseline

Before

Help me with formulas.

After

Write a formula for the exact columns, sample rows, edge cases, and output format. Return the formula plus a plain-English explanation and test cases.

Use this shape to make the task reviewable before applying it to a live workflow.

Common failure cases

Missing columnsWithout the source layout, AI guesses incorrectly and produces unusable formulas.
No test rowsIf the prompt does not include sample rows, the answer is hard to verify.
No exception rulesBlanks, duplicates, and mixed types need to be stated up front.

FAQ

What should I include in an AI Excel formula prompt?

Include the goal, column names, sample rows, expected output, edge cases, and the Excel version if a function may not be supported.

Can I paste a formula directly from AI into a live workbook?

Test it on a small sample first. Ask AI for assumptions and test cases before copying the formula across a production sheet.

Which AI tool should I start with for formulas?

Start with the tool you already use, then compare dedicated spreadsheet or automation tools only after the prompt workflow proves useful.

Next pages to use

AI for Excel formulasHelp analysts, operators, and founders turn plain English requests into formulas, explanations, and debug steps.AI Excel formulas from plain EnglishTurn plain-language spreadsheet requests into formulas, explanations, and test cases for real workbooks.AI for Google Sheets cleanupClean messy imports, normalize columns, and prepare sheets for reporting with repeatable prompts.Excel formula troubleshooting guide with AIUse AI to diagnose broken Excel formulas, spot edge cases, and repair formulas with clearer review steps.AI CSV import cleanup workflowPrepare messy CSV files for imports by validating fields, row counts, delimiters, and required formats.AI Excel formulas for finance analystsBuild formulas for variance checks, reconciliation, revenue schedules, and finance review sheets.