The File Extensions Database


.DOCX File Extension

  • Developer by: Microsoft
  • Category: Text Files
  • Format: Zip

What is an .DOCX file?

.DOCX is Microsoft Word Open XML Document

A DOCX file is a document created by Microsoft Word or another word processing program, such as OpenOffice Writer or Apple Pages. It contains formatted text but may also include images, drawn objects, and other document elements. DOCX files are widely used in home, academic, and business environments for drafting letters, resumes, invitations, newsletters, and other documents.

DOCX file open in Microsoft Word 2016

Unlike .DOC files, which store document data in a single binary file, DOCX files are created using the Open XML format, which stores documents as a collection of separate files and folders in a compressed zip package. Within a DOCX file are XML files and three folders, docProps, Word, and _rels, which hold the document properties, content, and relationships between the files. This structure is designed to make document content more accessible. For example, document text is saved using plain text files and document images are stored as individual image files within the DOCX file. These files may also include page formatting information, authorship data, and document review notes.

DOCX files can be opened by Word 2007 or later for Windows, or with Word 2008 or later for Mac OS X. They may also be opened with earlier versions of Word for Mac and Windows via Open XML document support.

NOTE: To explore the contents of a DOCX file manually, rename the ".docx" extension to ".zip" and then decompress the resulting file with any zip decompression utility.

Common DOCX Filenames

Document1.docx - The default filename that Microsoft Word gives to new documents.

Programs that open Microsoft Word Open XML Document
Windows
File Viewer Plus
Microsoft Word 2016
Corel WordPerfect X9
Apache OpenOffice
Hancom Thinkfree Office NEO Word
SoftMaker Office
Kingsoft Writer
LibreOffice
Mac
Microsoft Word 2016
Apple Pages
Planamesa NeoOffice
Apache OpenOffice
Hancom Thinkfree Office NEO Word
LibreOffice
Apple Preview
Linux
Apache OpenOffice
Hancom Thinkfree Office NEO Word
LibreOffice
iOS
Microsoft Word
Apple Pages
Infraware Polaris Office
MobiSystems OfficeSuite Pro
Google Drive
Microsoft OneDrive
Android
Microsoft Word
SoftMaker Office: TextMaker Mobile
Kingsoft WPS Office for Android
Infraware Polaris Office
Google Drive
MobiSystems OfficeSuite Pro
Microsoft OneDrive
Web
Google Drive
Microsoft OneDrive

How to solve problems with DOCX files

  • Associate the DOCX file extension with the correct application. On :
    Windows: Right click on any DOCX file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.DOCX files". Mac: Right click (or Ctrl-click) the DOCX file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .DOCX is Microsoft Word Open XML Document. Because only the current version supports the latest DOCX file format. Search, therefore, e.g. on the Microsoft manufacturer website after an available .DOCX is Microsoft Word Open XML Document update.
  • To make sure that your DOCX file is not corrupted or virus-infected, get the file again and scan it with antivirus software.