CSV to Excel Converter Convert CSV to XLSX or XLS in your browser. No login. No upload.
Free No login Local only
Need Excel to CSV?
100% browser-based
Drop CSV here Choose XLSX or XLS, then download your Excel file.

Private CSV to Excel converter

CSV to Excel Converter

Convert CSV files to Excel format directly in your browser. Choose XLSX or XLS, preview the table, and download the result without sending your CSV to a server.

XLSX or XLS output No login required Your file stays local
Browser-based CSV files are processed locally. Preview first Check rows and columns before download. Simple output Choose XLSX or legacy XLS format.
Simple conversion

Convert CSV to Excel

Open a CSV file, choose XLSX or XLS, and download an Excel file from the same page.

Preview

Check your table first

Preview rows, search values, hide columns, and adjust encoding before exporting.

Privacy

No upload required

Conversion runs in your browser, so your CSV does not need to be uploaded to a cloud converter.

CSV to Excel FAQ

Can I convert CSV to Excel online?

Yes. Load a CSV file, choose XLSX or XLS, then download the Excel file from your browser.

Is my CSV uploaded?

No. This converter reads and converts the CSV in your browser.

Should I choose XLSX or XLS?

Choose XLSX for modern Excel files. Choose XLS only if you need an older Excel 97-2003 compatible file.

Can I fix encoding before converting?

Yes. Use the Encoding dropdown if the preview text looks wrong, then download the Excel file after the table looks correct.