Excel → CSV

What is Excel → CSV?

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.

Used by

• Data engineers
• Backend developers
• API developers
• Data analysts
• Data migration teams
• Integration engineers

Recommended workflow

1. 1

   Prepare the input

   Start with the source file or pasted payload, then confirm delimiters, headers, and field handling before conversion.

2. 2

   Run Excel → CSV

   Review the preview, copy or download the result, and keep everything local in your browser.

3. 3

   Next recommended tool

   CSV → Excel: Generate a downloadable .xlsx workbook from CSV.

   Open tool
4. 4

   Then continue with

   Excel → JSON: Read .xlsx and emit JSON per sheet (objects or arrays).

   Open tool
5. 5

   Then continue with

   Excel Sheet Viewer: Open .xlsx files directly in the browser — sortable, searchable.

   Open tool

Frequently asked questions

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.

What's the maximum file size?

There's no hard limit imposed by the tool. Because processing happens in your browser, the practical ceiling is your device's available memory — most everyday files work instantly.

Do I need to install anything?

No installs and no extensions — it runs entirely in your web browser and even works offline once the page has loaded.