XLS→ODSConverter
Convert your XLS files to ODS format instantly. Free, fast, and secure - your files never leave your browser.
↔ Convert ODS to XLS insteadDrop file or click to browse
Max 100MB • Auto-deletes after 3 min
How to Convert XLS to ODS
Upload Your File
Drag & drop your XLS file or click to browse. Files up to 100MB are supported.
Convert
Click "Convert to ODS" and wait a few seconds for processing.
Download
Download your converted ODS file instantly. No registration needed.
Why Convert XLS to ODS?
Converting XLS to ODS improves compatibility, reduces file size, or enables your content to work with specific applications and platforms that require the ODS format.
About XLS and ODS
What is XLS?
XLS is the legacy Microsoft Excel binary format used before 2007. While superseded by XLSX, it remains necessary for compatibility with older Excel versions and some enterprise systems.
What is ODS?
ODS (Open Document Spreadsheet) is the open-standard spreadsheet format used by LibreOffice Calc and OpenOffice Calc. It's an ISO-standardized alternative to Microsoft's XLSX format.
Frequently Asked Questions
How do I convert XLS to ODS?
Upload your XLS file using the converter above, then click "Convert". Your file will be processed and you can download the converted ODS file immediately. The entire process takes just seconds.
Is it free to convert XLS to ODS?
Yes, ModConvert is completely free to use. There are no hidden charges, no registration required, and no watermarks on your converted files.
Is my XLS file safe when converting?
Absolutely. Your files are processed securely and are never stored permanently on our servers. Files are automatically cleaned up after conversion to protect your privacy.
What is the maximum file size for XLS to ODS conversion?
You can convert XLS files up to 100MB in size. This covers most common use cases for spreadsheet files.
Can I convert multiple XLS files at once?
Yes, you can upload and convert multiple XLS files. Each file will be converted to ODS format individually for the best quality results.