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._DOCX File Extension

File TypeRenamed Microsoft Word Open XML Document

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What is a _DOCX file?

A _DOCX file is a Microsoft Word Open XML document with the .docx extension changed to ._docx. It is a .DOCX file, which includes formatted text, images, graphs, tables, and charts. _DOCX files may be renamed to "._docx" files by an email program to prevent the file from being blocked by an email service.

More Information

Another reason why a _DOCX file may be created by an email program, such as Windows Live Mail, is if the filename ends with a "." before the "." in the extension. For example, the email program changes sample..docx to sample._docx. This also commonly occurs with .DOC, .XLS, and .XLSX files.

You can rename _DOCX files by changing the "._docx" extension to ".docx". After renaming the file, you can open it as a standard DOCX file. Some programs that can open DOCX files are Microsoft Word, Corel WordPerfect, LibreOffice Writer, and Apple Pages.

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Programs that open _DOCX files
Windows
Rename to ".doc" then open as a DOC file
Mac
Rename to ".doc" then open as a DOC file
Updated 6/4/2018

About _DOCX Files

Our goal is to help you understand what a file with a *._docx suffix is and how to open it.

The Renamed Microsoft Word Open XML Document file type, file format description, and Mac and Windows programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and only publish information about file formats that we have tested and validated.

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