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Excel to CSV

Convert .xlsx sheets to CSV

Free forever — no sign-up, nothing uploaded. Files never leave your device.

braincoder.app/use/excel-to-csv

Excel to CSV

Convert .xlsx sheets to CSV

Drop your file here

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Browse files

document.pdf

1.2 MB

report.pdf

860 KB

100% private

Nothing is uploaded — everything runs in your browser.

Free forever

No account or payment required.

No sign-up

Open the tool and start using it right away.

Local processing

Processing time depends on your input and device.

About this tool

Export any Excel workbook to CSV, one file per sheet, with formatting preserved — no uploads.

Excel to CSV exports the sheets of an Excel workbook as clean comma-separated values — one CSV file per sheet. It is the fastest way to move spreadsheet data into databases, data pipelines, analytics tools, and scripts that expect plain text input.

Cell values are preserved with the exact text stored in the workbook, and the CSV encoding follows the classic RFC-4180 conventions so it imports cleanly anywhere. Everything runs locally in your browser, keeping sensitive data private.

Key features

Everything you get with Excel to CSV — no premium upsell.

Convert Excel worksheets to CSV

One CSV file per sheet, downloaded individually

Download every sheet at once

RFC-4180 compliant escaping

Values preserved exactly as stored

Client-side processing — no uploads

How to use Excel to CSV

Follow the steps below to use the tool.

  1. 1

    Open a workbook

    Upload an .xlsx file with the upload button.

  2. 2

    Review the sheets

    Each sheet is listed with its row count.

  3. 3

    Download

    Download individual sheets or grab all of them as CSV files.

Still free, still private — your files never leave your device.

Launch Excel to CSV

Frequently asked questions

Quick answers before you launch the tool.