ODS file format: what it is and how to use it

ODS is the OpenDocument spreadsheet: the ISO-standard sibling of XLSX, native to LibreOffice Calc, storing sheets, formulas and styles as zipped XML. Learn when to use it and what to choose instead.

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What is a ODS file?

An .ods file is a workbook in OpenDocument Spreadsheet, the spreadsheet member of the ODF family (ISO/IEC 26300): a ZIP package of XML holding sheets, cells, formulas, styles and charts. Native to LibreOffice Calc and the open-standard counterpart to Excel's XLSX, mandated by governments that refuse proprietary lock-in for public data.

When should you use ODS?

  • ODF-mandated environments: public-sector and standards-driven shops.
  • LibreOffice/OpenOffice work: the fully native editable format.
  • Long-term, vendor-free storage: a documented spec, independent of any vendor.

When is another format a better fit?

For the Excel-centric world use XLSX, since ODS opens in Excel but fidelity drifts on complex features. For raw data exchange CSV beats both on simplicity. And for fixed delivery, PDF.

The short version: ODS is the open-standard spreadsheet: Calc's native tongue and the ISO answer to XLSX.

How to open a ODS file

On Windows

Double-click the file, or open it with Microsoft Excel.

On macOS

LibreOffice Calc opens ODS files on macOS.

In your browser

Open ODS files right in a browser tab or with the dexrr viewer. No install, no upload.

Also opens in

  • LibreOffice Calc
  • OpenOffice Calc
  • Microsoft Excel
  • Google Sheets

View or convert ODS files

A quick preview or a new format. No install, no upload.

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ODS technical details

Full name
OpenDocument Spreadsheet
Extensions
.ods
MIME type
application/vnd.oasis.opendocument.spreadsheet
Magic bytes
50 4B 03 04 (ZIP container)
Compression
Lossless
Developer
OASIS
Specification
docs.oasis-open.org

ODS questions, answered

How do I open an .ods file?

LibreOffice Calc, Excel, Google Sheets and OpenOffice open it. dexrr displays and converts ods files directly in your browser.

Can I convert ODS files online?

Yes, dexrr converts ods locally in your browser: ODS to XLSX for Excel users, ODS to CSV for data or ODS to PDF for printing.

Is ODS better than XLSX?

Functionally they are peers: ODS is the open ISO standard, XLSX is the market-dominant one. Choose by your ecosystem, not the format.

Why did my ODS lose formatting in Excel?

Feature sets differ, so charts, conditional formats and functions do not always map one-to-one. Keep a copy in ODS and export PDF for appearance.

Is the ODS format outdated?

No, it is the maintained ISO spreadsheet standard and the default of LibreOffice and OpenOffice.