File Extension DOCX
Information about DOCX files and how to open them
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What is a DOCX file (a file with file extension DOCX)?
The .docx extension is assigned to Microsoft Word documents created in the 2007 edition of Microsoft Word (and all later editions). This is a new Word format that is based on XML, which allows for better compression of Word documents and reduced file sizes. The difference between the XML Word format and prior Word formats is that XML Word documents are saved in text format instead of the older binary format.
The DOCX format is known as the Microsoft Office Open XML format. Documents that are saved in .docx format are not compatible with older versions of Microsoft Word, although some open-source software applications (such as Open Office) are able to open the documents that are saved with the .docx file extension.
Last updated July 23rd, 2011
Product(s) that open DOCX files
FreeFileViewer is a free DOCX file opener that will open DOCX files with just a few clicks. This file viewer is easy to use - and free! Click to download.
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