FileHint
JAEN

.docx

High risk

Microsoft Word Document (Open XML)

The default Word document format since Word 2007. Under the hood it is a ZIP package of XML and media — portable enough that most apps can open it.

MIME types

  • application/vnd.openxmlformats-officedocument.wordprocessingml.document

Category

document

What opens this file

  • Microsoft Word
  • Google Docs
  • Pages
  • LibreOffice Writer
  • WPS Office

How to open by OS

Windows

  • Edit in Word, Google Docs, or LibreOffice Writer.

Mac

  • Pages can read/write docx; Word for Mac has the best fidelity.

Linux

  • LibreOffice Writer.

Ios

  • Word Mobile, Pages, or Google Docs.

Android

  • Word Mobile or Google Docs.

Safety notes

  • Macro-enabled Office files (docm, old doc) remain a major malware vector. Even plain docx can trigger template-injection attacks that fetch remote payloads — do not disable Protected View on unexpected files.
  • When in doubt, copy the body text into a plain-text editor rather than opening the doc.

Common mistakes

  • Sending a docx and hoping it renders identically on the recipient's machine is risky — export to PDF when visual fidelity matters.
  • Confusing Apple's .pages bundle with .docx. Check the extension before sending.

FAQ

Is there a free offline editor for docx?
LibreOffice Writer is free on Windows, macOS, and Linux and has strong docx compatibility. Google Docs' offline mode is another option for light editing.

Related extensions

References