Xonix Tech

XLS to CSV Converter

Convert Excel files (.xls, .xlsx) to CSV format instantly. Free, secure, and works entirely in your browser.

Upload Excel File

Select your .xls or .xlsx file to convert to CSV format

Why Choose Our XLS to CSV Converter?

Professional-grade conversion with security and reliability you can trust.

100% Secure

Your Excel files are processed locally in your browser. No data is uploaded to our servers.

Lightning Fast

Convert Excel files to CSV in seconds with our optimized browser-based processing engine.

High Quality

Maintains data integrity and formatting during conversion. Perfect for data analysis and import.

The Best Free XLS to CSV Converter Online

Our XLS to CSV converter allows you to transform Microsoft Excel files (.xls, .xlsx) into CSV format instantly. This powerful web-based Excel to CSV converter supports both legacy .xls and modern .xlsx formats, making it the perfect solution for data migration, analysis, and integration workflows.

How to Convert XLS to CSV

  1. 1Upload your Excel file (.xls or .xlsx) using the upload button above
  2. 2Our converter automatically processes the file and extracts all data
  3. 3Click "Download CSV File" to save your converted data

Supported File Formats

Microsoft Excel (.xls)

Legacy Excel format from Excel 97-2003. Our XLS to CSV converter handles all legacy spreadsheet files with precision.

Excel 2007+ (.xlsx)

Modern Excel format with enhanced features. Full support for complex spreadsheets and large datasets.

Perfect for Business Professionals

Our Excel to CSV converter is designed for professionals who need reliable data conversion without installing software. Whether you're a data analyst, business manager, or researcher, this tool provides instant access to your data in CSV format with professional-grade accuracy and security.

Data Analysis

Reports

Research

Presentations

Frequently Asked Questions

Is this XLS to CSV converter completely free?

Yes! Our Excel to CSV converter is 100% free to use with no hidden costs, subscriptions, or limitations.

Do I need to install any software?

No installation required! This XLS to CSV converter works entirely in your web browser on any device.

Are my Excel files secure?

Absolutely! Files are processed locally in your browser and never uploaded to our servers, ensuring complete privacy.

What's the maximum file size supported?

Our Excel to CSV converter can handle most standard Excel files. Very large files may take longer to process but are fully supported.