Excel to CSV Converter

Convert the first Excel worksheet to UTF-8 CSV and understand what happens to formulas, formatting, dates, and other worksheets.

How to use this tool

1. Select the supported file or files.
2. Review the available options.
3. Run the tool and download the result.
4. Open the output and verify important data.

What this tool does

Export the first worksheet of an Excel workbook as one UTF-8 CSV file.

Important output limits

CSV cannot preserve workbook formatting, formulas, charts, images, comments, or multiple worksheets.

Frequently asked questions

Are files uploaded to an application server?

Spreadsheet contents are processed in the current browser tab.

What should I check after download?

CSV cannot preserve workbook formatting, formulas, charts, images, comments, or multiple worksheets.

Can I use this on a phone?

The interface works in modern mobile browsers, but large files may exceed device memory.

Should I keep the original file?

Yes. Keep a backup and verify generated output before relying on it.