The open counterpart to DOCX
ODT exists to do everything a Word document does — headings, styles, tables, images, footnotes, tracked changes — but as a vendor-neutral, openly governed standard rather than one company’s format. It belongs to the wider OpenDocument family, which includes spreadsheets and presentations under the same design principles. Because the specification is open and published, no single company controls its future, which is part of why public institutions and governments concerned about long-term access have adopted it. The structure mirrors other modern office formats: unzip an ODT and you find XML describing the content, separate XML for styles, and a folder for embedded images.
Living alongside Word
In practice ODT and DOCX coexist, and most office suites read both. LibreOffice and OpenOffice use ODT by default; Microsoft Word can open and save it, though some advanced Word-specific features may shift slightly in the round trip. Google Docs imports and exports it too. The friction you occasionally meet — a moved table border, a remapped style — comes not from ODT being deficient but from two rich formats expressing the same document in different internal vocabularies, which never translate with perfect fidelity.
Strengths
- A genuinely open ISO standard with no single corporate gatekeeper.
- The native format of LibreOffice and OpenOffice, and readable by Word and Google Docs.
- Stores rich documents — styles, tables, images, footnotes — in a compact ZIP package.
- Strong choice for archiving where long-term, software-independent access matters.
Limitations
- Round-tripping through Microsoft Word can subtly alter styling and advanced features.
- Less ubiquitous than DOCX, so some recipients may be unsure how to open it.
- Microsoft’s support, while real, treats ODT as a secondary rather than native format.
- Very complex documents can still reveal small interoperability differences between suites.
When to use ODT
Choose ODT when you work primarily in LibreOffice or OpenOffice, or when you want an open, future-proof format for documents you intend to keep for the long term.
ODT FAQ
- What can open an ODT file?
- LibreOffice Writer and Apache OpenOffice open it natively, and Microsoft Word, Google Docs and Apple Pages can all read it too. If you only need to view or extract the text, Morphr can open it in the browser.
- What is the difference between ODT and DOCX?
- Both are ZIP-based XML word-processing formats with similar capabilities, but ODT is the open OpenDocument standard governed by OASIS, while DOCX is Microsoft’s format. They are largely interchangeable, with occasional small differences when converting between them.
- Can I convert an ODT to Word or PDF?
- Yes. Morphr converts ODT to and from DOCX, PDF and other document formats in your browser, keeping headings, lists, tables and emphasis intact while nothing leaves your device.