Excel to CSV Converter

Convert an Excel spreadsheet to CSV instantly with this free XLSX to CSV converter. Just drop in an .xlsx or .xls workbook, pick the sheet you want, and get clean, comma-separated CSV you can copy to the clipboard or download as a .csv file. It's perfect for exporting Excel data to CSV for imports, databases, scripts, or any tool that reads plain text. Everything happens 100% in your browser — your spreadsheet is processed locally and never uploaded to any server, so even sensitive data stays completely private.

🔒 100% private — files never leave your device

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How to use

  1. Drop your Excel file (.xlsx or .xls) onto the dropzone or click to select it from your device.
  2. If the workbook has more than one sheet, choose which sheet to convert from the dropdown.
  3. Preview the generated CSV in the output box — conversion happens automatically as you pick a sheet.
  4. Click Copy to grab the CSV to your clipboard, or Download to save it as a .csv file.

Frequently asked questions

What file formats can I convert to CSV?

You can convert modern Excel workbooks (.xlsx) as well as older Excel files (.xls). The tool reads the workbook, lets you pick a sheet, and outputs standard comma-separated CSV.

Is my spreadsheet uploaded to a server?

No. The entire conversion runs 100% in your browser using JavaScript. Your file is read and converted locally on your device and is never uploaded, so your data stays completely private.

Can I convert a workbook with multiple sheets?

Yes. If your workbook has more than one sheet, a dropdown lets you pick which sheet to convert. Each sheet is exported as its own CSV, since CSV files hold a single sheet of data.

Is there a file size or row limit?

There's no fixed limit set by the tool. Because everything is processed in your browser, very large workbooks are bound only by your device's available memory and speed.

Will formulas, formatting, or charts be preserved?

CSV is a plain-text format, so only cell values are exported. Formulas are converted to their calculated results, and formatting, colors, images, and charts are not included.

How do I get my CSV after converting?

You have two options: click Copy to copy the CSV text straight to your clipboard, or click Download to save it as a .csv file named after your original workbook (and sheet, for multi-sheet files).

About this tool

Free Excel to CSV converter that runs 100% in your browser. Load an .xlsx or .xls file, pick a sheet, then copy or download clean CSV. Nothing is uploaded.

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