vs
odt
DOCX vs ODT: which document format to use?
A clear, practical comparison with a straight answer.
Use DOCX when the reader uses Microsoft Word, which is most workplaces. Use ODT when you want a fully open standard and control both ends, for example in a LibreOffice or public-sector workflow. Both apps can open and save each other's format.
Both are modern word-processing formats, and both are really ZIP packages of XML. DOCX is Microsoft Word's format; ODT is the open OpenDocument format used by LibreOffice. The choice usually comes down to who will open the file.
They convert between each other well, but complex formatting can shift, so matching the recipient's software avoids surprises.
.docx vs .odt at a glance
| .docx | .odt | |
|---|---|---|
| Native app | Microsoft Word | LibreOffice Writer |
| Standard | Office Open XML | OpenDocument (ISO) |
| Under the hood | ZIP of XML | ZIP of XML |
| Compatibility | Near-universal | Good, opens in Word too |
| Best for | Microsoft Office workflows | Open-standard workflows |
Frequently asked questions
Can Word open an ODT file?
Yes. Modern Microsoft Word opens and saves ODT, though very complex layouts may shift slightly. LibreOffice likewise opens DOCX.
Should I send a DOCX or an ODT?
Match the recipient. Most workplaces expect DOCX for Word; send ODT to people using LibreOffice or when an open standard is required.