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HomeODS vs XLS
.ods
.xls

ODS vs XLS

Compare OpenDocument Spreadsheet and Microsoft Excel 97-2003 formats — understand the key differences and when to use each

Format Overview

ODS

OpenDocument Spreadsheet

OpenDocument Spreadsheet (.ods) is a spreadsheet file format.

.odsspreadsheet

XLS

Microsoft Excel 97-2003

Microsoft Excel 97-2003 (.xls) is a spreadsheet file format.

.xlsspreadsheet

ODS vs XLS: Feature Comparison

FeatureODSXLS
Full NameOpenDocument SpreadsheetMicrosoft Excel 97-2003
File Extension.ods.xls
Categoryspreadsheetspreadsheet
Free to Convert✓ Yes✓ Yes
Browser Support✓ All Browsers✓ All Browsers
Convert to Each Other✓ Yes✓ Yes

When to Use ODS vs XLS

Use ODS when you need:

  • •Files in OpenDocument Spreadsheet format for maximum compatibility
  • •Industry-standard spreadsheet format support
  • •Wide software and platform compatibility

Use XLS when you need:

  • •Files in Microsoft Excel 97-2003 format for specific workflows
  • •Optimized spreadsheet format features
  • •Modern format advantages and smaller file sizes

Convert Between Them

ODS XLSXLS ODS
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Learn More About These Formats

ODS Converter XLS Converter

Frequently Asked Questions

What is the difference between ODS and XLS?
ODS (OpenDocument Spreadsheet) and XLS (Microsoft Excel 97-2003) are both spreadsheet file formats. ODS files use the .ods extension while XLS uses .xls. They differ in compression, quality, compatibility, and intended use cases.
Can I convert ODS to XLS for free?
Yes! Convert999 lets you convert ODS to XLS completely free, directly in your browser. No file upload to any server, no registration needed — your files stay private on your device.
Which is better, ODS or XLS?
It depends on your use case. ODS (OpenDocument Spreadsheet) may be better for certain workflows, while XLS (Microsoft Excel 97-2003) excels in others. Consider factors like file size, quality, software compatibility, and your specific needs.
Is it safe to convert files on Convert999?
Absolutely. Convert999 processes all files 100% locally in your browser. Your files are never uploaded to any server, ensuring complete privacy and security.

ODS Converter

Convert from ODS

XLS Converter

Convert from XLS

File Tools

Compress, resize, merge

Convert to ODS

All sources → ODS

Convert to XLS

All sources → XLS

Format Statistics

Trends & data 2025

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