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Convert Excel to CSV Online
Convert Excel sheets to CSV in your browser so the data can move into databases, scripts, or other tools.
Problem
An XLSX workbook needs to be converted into a plain CSV file for a data workflow.
What to do
CSV is easier to validate, clean, diff, and import. Convert the needed sheet first, then inspect the output before downstream processing.
- 1Upload the Excel workbook.
- 2Choose the sheet to convert.
- 3Download the CSV and run validation or cleaning if needed.
Use the browser tool
Excel to CSV Converter is a free, browser-based tool that helps you convert between formats. Convert .xlsx sheets into CSV — reads every sheet in your browser. It's built for speed and privacy: Everything runs locally in your browser — your data is never uploaded to a server. No sign-up, no installs, and no daily limits.
People also ask
- How do I convert Excel to CSV?
- Paste your Excel into the input panel (or drop a file), adjust the options if needed, then copy or download the CSV from the output panel. The conversion happens instantly in your browser.
- Is my data uploaded or stored anywhere?
- No. Everything runs locally in your browser — your data is never uploaded to a server. Nothing is sent to a server, so it's safe to use with private or sensitive data.
- Is Excel to CSV Converter free?
- Yes — it's completely free with no account, no sign-up, no watermark, and no daily usage limits.