DOCX file extension

Microsoft Office Word (2007+) Document

Open .DOCX (Microsoft Office Word (2007+) Document) files

Related .DOCX software

DOCX file
Windows
Microsoft Office Word (2007+)
DOCX file
Apple Mac
Microsoft Office Word (2007+)
Other file information
Author:
Microsoft
File Type:
Document
This extension belongs to the Microsoft Office 2007 suite (and above) and is a new format based on XML. This new XML format currently applies to the Word, Excel and PowerPoint components of MS Office and is known as the Microsoft Office Open XML format.
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Related DOCX file links

Introduction to Microsoft's Open XML file formats

DOCX file technical information
Identifying Characters (ASCII):
 
Identifying Characters (Hex):
 
Program registry ID:
DOCX MIME Type:

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Visitor comments...

MD IRFAN AHMAD
2008-02-08 07:42:30
hello

I have a question, Why does Microsoft Office 2007 word documents have an extension of .DOCX, but in earlier versions it is .doc?

Andrew Z
2008-02-26 01:30:35
More ways to read .docx files

www.oooninja.com/2008/02/word-2007-docx-converter-oxygenoffice.html
www.oooninja.com/2008/02/zamzarcom-docx-odt-converter-review.html
www.oooninja.com/2008/01/docx2rtf-docx-openxml-rtf-document.html

Don't forget the Office 2007 fonts for maximum compatibility:
www.oooninja.com/2008/01/calibri-linux-vista-fonts-download.html

MD IRFAN AHMAD:
The reason is the new .DOCX files use XML, so the X stands for XML.

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