Task prompt · Data
Clean a messy spreadsheet
by Agent Yard TeamFix duplicates, formats and errors in a CSV or Excel file.
You'll attach
Needs file
Works with
ChatGPT
Claude
Gemini
Grok
CopilotUse cases
- Fix duplicates, formats and errors in a CSV or Excel file.
- When you already have a file and want the AI to work from it instead of starting from scratch.
- As one step of the Analyze your data prompt pack.
Featured in: Best ChatGPT prompts for Excel and data, Best Copilot prompts for work, Best ChatGPT prompts for data analysis.
How to use it
- Open chatgpt.com or claude.ai (or another AI listed here).
- Attach the file (PDF, Word, CSV or Excel), or paste its text into the prompt.
- Copy the prompt, paste it into the chat and send.
- ChatGPT, Claude, Gemini and Grok can read and return spreadsheet files.
Prompt
Clean the attached spreadsheet. First describe the problems you find: duplicates, inconsistent formats (dates, phone numbers, capitalization), empty or invalid values, extra spaces. Then clean it, explain every rule you applied, and give me the cleaned file plus a list of rows you weren't sure about. Don't delete rows without telling me.
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