Cómo usar: CSV to Excel
- Paste the CSV or click Open file.
- Check the preview — the delimiter (comma, semicolon or tab) is detected automatically.
- Set the file and sheet name and click Download .xlsx.
Why convert CSV to Excel instead of just opening it?
Double-clicking a CSV lets Excel guess: in many European locales it expects semicolons, accented characters can turn into garbage without a UTF-8 BOM, ZIP codes like 02134 lose their leading zero, and long numbers become scientific notation. Converting to .xlsx first fixes the types once, so the file opens the same way on every computer.
The converter reads the CSV in your browser, keeps text as text and numbers as numbers, and writes a workbook with a bold, frozen header row. The tab-separated output can also be pasted straight into Excel or Google Sheets.
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Herramientas que combinan con: CSV to Excel
- JSON to Excel — Turn a JSON array into a real Excel workbook.
- Split CSV — Break a big CSV into smaller files — every 1,000 rows, into a set number of files, or one file per value of a column such as region or customer.
- Excel to JSON — Open an .xlsx workbook or paste cells straight from Excel or Google Sheets and get clean JSON.
- CSV to JSON — Paste CSV or TSV and get a JSON array of objects.
Preguntas frecuentes
How do I convert CSV to Excel?
Paste the CSV or open the file, check the preview and click Download .xlsx. The delimiter and value types are detected automatically.
Will leading zeros be kept?
Yes. Values such as 02134 are stored as text, so the zero is not removed the way it is when Excel opens a CSV directly.
Is my CSV uploaded?
No. The conversion runs entirely in your browser.
¿Puedo instalar CSV to Excel como aplicación web y utilizarla sin conexión?
Sí. CSV to Excel es una aplicación web instalable (PWA): se instala desde el navegador, no se descarga desde una tienda de aplicaciones. Haz clic en «Instalar aplicación» en la parte superior de esta página en Chrome o Edge (Windows, macOS, Linux, ChromeOS) o, en Android, utiliza «Compartir» → «Añadir a la pantalla de inicio» en iPhone y iPad, o «Archivo» → «Añadir al Dock» en Safari 17+ en un Mac. A continuación, se abrirá en su propia ventana con su propio icono y, como se ejecuta íntegramente en tu navegador, seguirá funcionando sin conexión. Firefox en el ordenador de sobremesa no permite instalar aplicaciones web. Cómo funciona la instalación.