CSV to Excel Converter

Runs in your browser — nothing is uploaded

CSV

Reads the first sheet only. Files up to 20 MB.

Choose an .xlsx file to convert.

CSV

About this tool

Runs entirely in your browser — the .xlsx file is built/read locally, nothing is uploaded to our servers. Reading an .xlsx back to CSV needs a modern browser (Chrome/Edge/Firefox/Safari 16.4+) for its native decompression support; writing CSV to .xlsx works everywhere.

Frequently asked questions

What is CSV to Excel Converter?

Convert CSV to a real .xlsx file and back. It is one of the JSON, XML & YAML tools on MyCodeTips.

How do I use CSV to Excel Converter?

Open the tool, enter or paste your input, and the result appears right away. Use the Copy button to copy it.

Is CSV to Excel Converter free to use?

Yes. It is free to use and does not need an account.

Is my data safe with CSV to Excel Converter?

Yes. It runs entirely in your browser, so what you enter is never uploaded to our servers.

Can I share my result?

Yes. Use the share buttons below the tool to post a link or copy a link to the tool page.