Is the Excel to CSV Converter really free?

Yes, completely free with no signup required.

Does my Excel file get uploaded to a server?

No. All processing happens locally in your browser using JavaScript. Nothing is uploaded.

What does the CSV output look like?

The output is a comma-separated CSV file with a header row from your Excel column names and one data row per row.

What will the output file be named?

The output CSV file will have the same base name as your input Excel file, with the extension changed to .csv.

Free Excel to CSV Converter | FinancialDataTools.com

Source Excel

Drop to load

Excel file (.xlsx)

📗

Drop an Excel file or click Open

Supports .xlsx, .xls, .csv

About the Free Excel to CSV Converter

The FinancialDataTools.com Excel to CSV Converter is a free, browser-based tool for converting Excel (XLSX) files to CSV format. It runs entirely in your browser — no file is ever uploaded to any server.

How It Works

Drop your Excel file onto the left panel or click Open to browse. Your source data is previewed in a table. Click Convert to CSV to generate the output in the right panel. Click Export CSV to download the result file.

Privacy and Security

All file processing happens inside your browser using JavaScript. No file content is transmitted to any server. Your data stays private on your device.

Free Excel to CSV Converter — Convert Excel XLSX to CSV Online