Spreadsheet Converter

Convert spreadsheets between XLS, XLSX, CSV, ODS and many other formats. High quality conversion with no software installation required.

Supported Spreadsheet Formats

XLS
Microsoft Excel Spreadsheet (Legacy)
XLS Converter
XLSX
Microsoft Excel Spreadsheet
XLSX Converter
CSV
Comma-Separated Values
CSV Converter
ODS
OpenDocument Spreadsheet
ODS Converter
Spreadsheet Converter
High-quality spreadsheet conversions for data and calculations

Spreadsheet formats are used for data organization and calculations. XLS is the legacy Microsoft Excel format, while XLSX is the modern XML-based format. CSV is a universal text format for data exchange, and ODS is the open standard used by LibreOffice and OpenOffice. Convert between these formats to ensure compatibility with different spreadsheet software and data processing tools.

Convert from Spreadsheet
Popular spreadsheet conversions
XLS ConverterXLSX ConverterCSV ConverterODS Converter
Secure & Private

All conversions happen locally in your browser. Your files are never uploaded to our servers, ensuring 100% privacy and security for your sensitive documents.

Lightning Fast

Experience instant conversions without waiting for file uploads or downloads. Our optimized algorithms ensure the fastest processing speeds possible.

Universal Access

Access Spreadsheet Converter from any device - Windows, Mac, Linux, iOS, or Android. No software installation or registration required.

High Quality

Maintain the highest possible quality during conversion. We use advanced processing to ensure your files look exactly as intended.

About Spreadsheet Converter

Convert spreadsheets between XLS, XLSX, CSV, ODS and many other formats. High quality conversion with no software installation required.

Why Use Our Spreadsheet Converter?

  • Free to use forever - no hidden costs or subscriptions
  • No file size limits or usage restrictions
  • Works offline - once loaded, you can use it without internet
  • Clean, user-friendly interface designed for efficiency

Frequently Asked Questions

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