Convert XLSX to CSV

Open an Excel file and export a sheet as clean CSV.

No login requiredFiles stay private

Drop files here, or click to browse

XLSX, XLS, CSV, ODS no file size limit

Browse files

Your files never leave your device. All processing happens locally in your browser.

Open .xlsx, .xls, .csv, or .ods spreadsheets without Excel or Google Sheets. The file is parsed entirely in your browser.

CSV tips

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Open the workbook, pick the sheet you want, and click "⬇ CSV" to download it.

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Each sheet exports separately, so you control exactly which data becomes CSV.

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Great for importing spreadsheet data into tools and scripts that only accept CSV.

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Conversion happens locally — your data never leaves the browser.

Choose File

Drop your file into the tool above. It stays entirely on your device — nothing is sent to any server.

Process

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

Download

Get your result instantly. Nothing is stored after you leave the page — complete privacy.

✓Completely free — no hidden costs, ever

✓No account, email, or login required

✓Files never leave your device

✓No file size limits whatsoever

✓No watermarks on any output

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