Spreadsheet utility
CSV Column Cleaner
Paste a small CSV sample and convert the header row into clean lowercase names for spreadsheet imports.
Builder inputs
This utility rewrites only the first row. No CSV content is uploaded or stored.
customer_name,invoice,paid_amount
Acme Co,INV-1001,240
Northwind,INV-1002,180The cleaner only rewrites the header row locally in your browser. It does not upload or store CSV content.How this formula works
- Headers are lowercased and non-alphanumeric characters become underscores.
- The data rows are preserved as entered.
- This is useful before importing CSV exports into spreadsheet templates or query workflows.
Sample data
| Original Header | Clean Header |
|---|---|
| Customer Name | customer_name |
| Invoice # | invoice |
| Paid Amount ($) | paid_amount |
Common mistakes
- This is a lightweight helper, not a full CSV parser for complex quoted commas.
- A row such as Acme,"Hello, world" contains a quoted comma and should be handled in a spreadsheet or dedicated CSV parser.
- Duplicate headers can clean to the same name, such as Customer Name and Customer-Name both becoming customer_name.
- Check duplicate cleaned names before importing into another tool.
- Keep a copy of the source export when changing headers.
Related formulas
FAQ
Are these formulas generated with AI?
No. The builder uses deterministic TypeScript functions in the browser and does not call any AI API.
Do I need to upload my spreadsheet?
No. Enter ranges and criteria manually. The site does not upload, store, or process spreadsheet files.
Can I copy the generated formula?
Yes. Each output includes a copy button so you can paste the formula into Excel or Google Sheets.