Free XLSX to CSV Converter

Convert XLSX to CSV Online

Convert Excel spreadsheets to CSV online for free. Private browser-based processing — no upload, no watermark.

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Ready to convert XLSX to CSV?

Open the document converter, upload your XLSX file, select CSV, and download instantly.

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Frequently asked questions

Can I convert XLSX to CSV for free?

Yes, Convert.AI converts documents privately in your browser at no cost.

Is my document uploaded?

No. The conversion happens locally in your browser.

What is the file size limit?

Free users can convert documents up to 50MB.