Welcome to the File Converter

Upload your file to start converting. Choose a file from your device or use a remote file link.

${shortenFileName(item.file_name)} ${formatBytes(item.file_size)}

Output:

Add ${items.length} files

Convert

How to Convert Xls to ODS?

Click the “Choose XLS Files” button and select your XLS file
Click on the “Convert” button to start the conversion
When the status changes to “Done”, click the "Download ODS" button

Convert Any XLS to ODS

This tool supports converting many types of Xls to ODS. Convert XLSX, PDF, CSV, ODS, TXT, HTML, XML, DOCX AND RTF to ODS.

Best Xls Converter

Convert your Xls with perfect quality, size, and compression. Plus, you can also batch convert Xls using this tool.

Free & Secure

Our Xls Converter is free and works on any web browser. We guarantee file security and privacy. Files are protected with 256-bit SSL encryption and automatically delete after a few hours.

What is an XLS file?

XLS is the early binary file format used by Microsoft Excel for storing spreadsheet data. It is widely used in data analysis, financial management, and business reporting. Unlike the modern XLSX format, XLS uses binary encoding and supports basic formula calculations and charts. Although XLS has been replaced by XLSX as the default format, many legacy systems and applications still rely on XLS for data exchange.

https://en.wikipedia.org/wiki/Microsoft_Excel

https://support.microsoft.com/en-us/office/file-formats-that-are-supported-in-excel-094e3b38-5e92-416d-b3be-fa6c197ba18f

https://docs.fileformat.com/spreadsheet/xls/

What is an ODS file?

ODS is the OpenDocument Spreadsheet format, based on the XML standard, used for storing spreadsheet data. It was developed by OASIS and is widely supported by open-source office suites such as LibreOffice Calc and OpenOffice Calc. ODS files support complex formulas, charts, images, and other multimedia elements, making them suitable for creating high-quality spreadsheets, financial reports, and data analysis. Compared to traditional XLS or XLSX files, ODS offers better cross-platform compatibility and adherence to open standards, ensuring consistent formatting and layout across different operating systems and applications. Additionally, ODS files are typically smaller in size and faster to load, making them ideal for handling large datasets.