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CSV to Excel Converter

Free CSV to Excel converter — turn CSV into a downloadable .xlsx spreadsheet in your browser.

Learn more: CSV Files ExplainedThe CSV format, RFC 4180 quoting rules, encodings, common pitfalls, and how CSV compares to TSV, JSON and Parquet.

CSV

Runs entirely in your browser — nothing you enter is uploaded or stored.

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CSV to Excel Converter

Free CSV to Excel converter — turn CSV into a downloadable .xlsx spreadsheet in your browser.

All processing happens locally in your browser — your file never leaves the page, which you can confirm from the Network panel or our privacy policy.

Frequently asked questions

How do I use the CSV to Excel Converter?

Paste or load your CSV, then click Convert to build the file and download it. Everything happens in your browser.

Is my file uploaded anywhere?

No. The conversion runs entirely in your browser using a library loaded on demand — your file never leaves your device.

Is the CSV to Excel Converter free?

Yes — completely free, no sign-up and no limits.

CSV to Excel Converter

Frequently asked questions

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