Convert ODS to XLSX — Free Online Converter
Convert OpenDocument Spreadsheet (.ods) to Excel Open XML Spreadsheet (.xlsx) online for free. Fast, secure document conversion with no watermarks or registration.
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How to Convert
Upload your .ods file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .xlsx file when it's ready.
About ODS to XLSX Conversion
ODS (OpenDocument Spreadsheet) is the ISO-standardized open format for spreadsheet data, used natively by LibreOffice Calc. XLSX is the Office Open XML spreadsheet format used by Microsoft Excel, also an ISO standard (ISO/IEC 29500). Converting ODS to XLSX translates between two modern, XML-based spreadsheet formats — bridging the LibreOffice and Microsoft ecosystems with high fidelity since both formats share similar structural concepts.
This is the most practical conversion for LibreOffice Calc users working in mixed-office environments. XLSX is the de facto standard in corporate, financial, and educational settings. Converting ODS to XLSX before sharing ensures recipients can open, edit, and process the spreadsheet in Excel without any compatibility layer or import filter interfering with the data.
Why Convert ODS to XLSX?
XLSX is the expected format in most professional environments. Email attachments, SharePoint libraries, Microsoft Teams collaboration, and cloud-based Excel in Microsoft 365 all assume XLSX input. Sending ODS files to Excel users forces them through an import filter that may alter formatting, break formulas, or lose features — a risk that converting to XLSX before sending eliminates completely.
The conversion also enables full integration with Microsoft 365's collaborative editing features. Real-time co-authoring, comments, version history, and Power Automate workflows all function optimally with native XLSX files. ODS files uploaded to SharePoint or OneDrive are converted server-side with unpredictable fidelity — converting client-side gives you control over the output quality.
Common Use Cases
- Share LibreOffice Calc spreadsheets with Excel users in corporate environments
- Upload ODS files to Microsoft 365 SharePoint for collaborative editing
- Prepare ODS financial models for review by teams using Excel
- Convert ODS data files for import into Excel-based business intelligence tools
- Submit ODS-based reports to organizations that standardize on Microsoft Office
How It Works
The conversion engine uses LibreOffice in headless mode to parse the ODS XML package and re-serialize it as an Office Open XML SpreadsheetML package. Cell values, formulas (mapped from OpenDocument formula syntax to OOXML syntax), named ranges, data validation rules, conditional formatting, charts, pivot tables, cell styles, and sheet protection are all mapped to their XLSX equivalents. The output conforms to the Transitional variant of ISO/IEC 29500.
Quality & Performance
The conversion between these two modern XML-based formats is high fidelity. Cell values, formulas, number formats, fonts, borders, fills, conditional formatting, and charts transfer accurately. ODS features that have no XLSX equivalent — such as regex-based conditional formatting and certain OpenFormula functions — are approximated or omitted. Overall, the quality is excellent for standard business spreadsheets.
Device Compatibility
| Device | ODS | XLSX |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No |
Tips for Best Results
- 1Use standard fonts available on both LibreOffice and Excel (Arial, Times New Roman, Calibri) for best cross-format rendering
- 2Verify formulas using ODS-specific functions after conversion — some may need Excel equivalents
- 3Refresh pivot table caches in Excel after opening the converted file
- 4Check conditional formatting rules, especially those using regular expressions (not supported in Excel)
- 5Test the converted file in Excel before distributing to verify all features work as expected
Related Conversions
ODS to XLSX conversion is the essential bridge for LibreOffice users collaborating in Microsoft-centric environments, producing native Excel files with high formatting and data fidelity.