Format comparison
DOC vs ODT
How do DOC and ODTcompare? Here's everything you need to know to choose the right format — and how to convert between them.
.doc
Full guide →Microsoft Word Document (Legacy)
DOC is the legacy binary format used by Microsoft Word before 2007. While still widely encountered, it has been superseded by DOCX. Many older documents and templates still use this format.
.odt
Full guide →Open Document Text
ODT is an open-standard document format used by LibreOffice, OpenOffice, and Google Docs. It's the free, vendor-neutral alternative to DOCX for word processing.
| Specification | DOC | ODT |
|---|---|---|
| Full name | Microsoft Word Document (Legacy) | Open Document Text |
| Extension | .doc | .odt |
| MIME type | application/msword | application/vnd.oasis.opendocument.text |
| Category | Document | Document |
| Developer | Microsoft | OASIS (Organization for the Advancement of Structured Information Standards) |
| Year introduced | 1983 | 2005 |
DOC advantages
- Universal recognition
- Compatible with older Word versions
- Still supported by all major office suites
- Extensive installed base of existing documents
DOC limitations
- Larger file sizes than DOCX
- Binary format — harder to recover if corrupted
- Limited to older feature set
- Being phased out in favor of DOCX
ODT advantages
- Open standard — no vendor lock-in
- Free to use with no licensing fees
- Supported by LibreOffice, Google Docs, and more
- Long-term archival format (ISO standard)
ODT limitations
- Less common in business environments
- Formatting differences with Microsoft Office
- Fewer advanced features than DOCX
- Limited template ecosystem
Which should you use?
DOC and ODT serve different purposes. DOC is ideal for opening legacy documents, while ODT excels at government and public sector documents.
Best uses for DOC
Opening legacy documents
Compatibility with older systems
Template archives
Government and institutional legacy files
Best uses for ODT
Government and public sector documents
Academic and educational use
Open-source workflows
Long-term document archival
Convert between DOC and ODT
Need to switch formats? Convert for free with SquishConvert.