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Microsoft Word Open XML document
File type: Document file, Microsoft Office file
Files with docx extension are documents written and saved using Microsoft Word word processor edition 2007 or later. DOCX format replaced the previously used DOC format, moving from binary files to Open XML schema-based documents. They are supported in almost every modern word-processing tools.
File type category:
Document file
Microsoft Office file
Date updated: January 20, 2025
File extension docx is best known for its use in Microsoft Word, a powerful word processor and authoring software that allows users to create and share documents. It is available as part of Microsoft Office and Office 365 subscription-based services.
Replacing the previously used binary .doc files, .docx files were introduced in MS Word 2007 and feature an Open XML formatting schema for more excellent compatibility with ZIP compression resulting in smaller files.
Microsoft Word 2007, Microsoft Word 2010, Microsoft Word 2013, Microsoft Word 2016, and Microsoft Word 2021 still use the same docx document file format.
MIME types used for Word docx documents:
application/vnd.openxmlformats-officedocument.wordprocessingml.document
Any text editor with the support of Microsoft Word docx format can open and edit .docx documents. Plenty of free open-source or commercial office suites and word processors are available for all major platforms.
Microsoft Word supports other document formats, so users can convert .docx documents to different formats using the File|Save as... menu option.
Some Third party word processors and converters also support formats from MS Word and can achieve docx conversion in the same manner.
Software applications that can open docx files:
Microsoft Windows
Apple macOS / Mac OS X
Linux/Unix
On-line services
Apple iOS
Google Android
Software applications that can edit docx files:
Microsoft Windows
Apple macOS / Mac OS X
Linux/Unix
On-line services
Apple iOS
Google Android
Software capable of saving docx files:
Microsoft Windows
Apple macOS / Mac OS X
Linux/Unix
On-line services
Apple iOS
Google Android
Software apps that create docx files:
Microsoft Windows
Apple macOS / Mac OS X
Apple iOS
Google Android
Software apps that convert docx files:
Microsoft Windows
Apple macOS / Mac OS X
Multiplatform
Software apps that import docx files:
Microsoft Windows
Apple macOS / Mac OS X
Multiplatform
Apple iOS
Software apps that export docx files:
Apple macOS / Mac OS X
Multiplatform
On-line services
Apple iOS
Software apps that recover docx files:
Microsoft Windows
Software apps that print docx files:
Microsoft Windows
Apple macOS / Mac OS X
Linux/Unix
Apple iOS
Software applications that handle other tasks involving docx files:
Microsoft Windows
Apple macOS / Mac OS X
On-line services
Apple iOS
Google Android
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