DOCX
An Office Open XML package used for word-processing documents containing text, formatting, images, tables, and other document content.
General information
- Format name
- Office Open XML Word Document
- Extension
.docx- MIME type
application/vnd.openxmlformats-officedocument.wordprocessingml.document- Category
- document
- Data type
- Binary
- Developer
- Microsoft
Common uses
Word-processing documents
Reports
Letters
Resumes
Business documents
Academic documents
Related formats
Technical resources
| Resource | Publisher | Link |
|---|---|---|
| ECMA-376 — Office Open XML File Formats | Ecma International | Open resource ↗ |
| Word, Excel, and PowerPoint Standards Support | Microsoft | Open resource ↗ |
| Media Types Registry | IANA | Open resource ↗ |
Record information
- Verified
- October 3, 2026
- Last updated
- October 3, 2026