Convert XLS to ODS Files Online for Free.
Free online tool to convert xls to ods files quickly and securely. No installation required – start converting your files in just a few clicks!
Drag and drop your files here or click to upload.
0 files uploaded. 100 files remaining.
Maximum file size is 10MB
How It Works
How to Convert XLS to ODS
Click inside the file drop area to upload your XLS file or drag & drop it.
Select ODS as the output format and click the 'Convert' button.
Download the converted ODS file instantly after conversion.
You can also send a link to the converted file via email. (Optional)
Convert Your XLS files to other formats
RunConvert.com can convert your XLS files to these other formats:
Convert Your XLS files to other formats
Convert Files to XLS Format
RunConvert.com supports these converters to XLS format:
Convert Files to XLS Format
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Frequently Asked Questions
Here are some common questions and answers about xls file conversions ask by our users on RunConvert.com.
Frequently Asked Questions
Q: Will formulas work after conversion?
A: If you're converting to another spreadsheet format like ODS or XLSX, formulas usually transfer just fine. But CSV or PDF? Not so much—they flatten the data.
Q: Can I convert scanned spreadsheets?
A: Not directly. Scanned files are usually images or PDFs, so you’d need OCR (optical character recognition) first—then convert.
Q: Do formulas still calculate after converting XLSX to ODS?
A: In most cases, yes. Excel and LibreOffice play nicely together—but complex macros or newer functions might act up a bit.
Q: How do I fix broken rows or columns after conversion?
A: That’s often a delimiter issue. Try opening the file in a text editor to see if commas or tabs are breaking the layout, then import it properly.
Q: What if I accidentally upload the wrong file?
A: No stress—just hit back and upload the right one. We don’t store anything, so no damage done.
Q: Can I preview how the PDF will look before converting?
A: We’re building a live preview feature! For now, you’ll need to download and check—conversions are quick, so it’s easy to retry.
Q: Do converted files work with Excel alternatives like LibreOffice?
A: Yes! Just make sure you pick a format LibreOffice supports—like CSV, XLSX, or ODS—and you’re good to go.
Q: Can I convert a spreadsheet to use in a mobile app?
A: Yes! Many mobile apps work well with CSV, XLSX, or even JSON if you’re importing data programmatically.
Q: Does RunConvert have file size limits?
A: We allow generous file sizes, but there’s a cap (around 100MB for now). Most spreadsheets fall well under that, though.
Q: Are converted files virus-free?
A: Absolutely. We don’t add anything to your files—just convert them. Always scan downloads if you’re extra cautious though!
What is XLS (Excel Spreadsheet)?
XLS (Excel Spreadsheet) is a proprietary file format developed by Microsoft for storing spreadsheet data, including rows, columns, and data cells. The format supports complex data like formulas, charts, and formatting.
XLS files are widely used for business, academic, and personal tasks requiring advanced data analysis, visualization, and reporting.
How to open XLS?
XLS files can be opened using spreadsheet programs like Microsoft Excel, LibreOffice Calc, or Google Sheets. These programs display data in a tabular format, preserving the cell structures, formulas, and formatting.
To open XLS files in Excel or Google Sheets, simply double-click the file or import it into the application.
XLS is Developed by: Microsoft
XLS was Released on: 1985
Useful Links for XLS:
How to convert XLS?
You can convert XLS files to other formats, such as CSV, JSON, or PDF, using online file converters or within spreadsheet programs. Simply upload your XLS file and select the desired output format.
In Microsoft Excel or LibreOffice, you can also save your XLS files in various other formats, like CSV or PDF, for compatibility with different applications.
What is ODS (Open Document Spreadsheet)?
ODS (Open Document Spreadsheet) is an open standard for spreadsheet documents. It is part of the OpenDocument family of file formats and is commonly used for storing tabular data, such as spreadsheets and financial documents.
ODS files are used by open-source office suites like LibreOffice and OpenOffice, and they are also supported by other spreadsheet programs.
How to open ODS?
ODS files can be opened using open-source office software like LibreOffice Calc or OpenOffice Calc. They can also be opened in other spreadsheet applications, such as Microsoft Excel, although some features may not be fully supported.
To open ODS files, simply double-click on the file, or use the 'Open' function within a spreadsheet program like LibreOffice Calc or Excel.
ODS is Developed by: OASIS (Organization for the Advancement of Structured Information Standards)
ODS was Released on: 2005
Useful Links for ODS:
How to convert ODS?
You can convert ODS files to other formats such as CSV, Excel (.xlsx), or PDF using online file converters. Simply upload your ODS file and select the desired output format.
Many office applications, including LibreOffice and Microsoft Excel, allow you to save ODS files in different formats, making them compatible with a wide range of software.
What Our Users Say
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