Live Demo

CSV To Excel

The real tool, loaded with a sample CSV. Everything below works exactly as it does on your own files — and it is free there too.

We store none of your data

Processed in your browser, never uploaded. Money back if it doesn't work — no questions.

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Drag & drop spreadsheets

or click to browse — CSV becomes .xlsx, .xlsx becomes CSV, as many files as you like

A workbook with several sheets converts its first sheet. Nothing is uploaded — the conversion happens on this page.