DOCX File

Microsoft Word Document (.docx)

What is a DOCX file?

A DOCX file is the modern Microsoft Word document format. It stores text, formatting, images, tables, and other document elements in a zipped package of XML files, which helps keep documents structured and compatible across many apps.

Common uses

Letters, resumes, and school documents
Reports with headings, tables, and images
Templates for consistent formatting
Collaborative editing and tracked changes
Export/import for document workflows

How to open a DOCX file

Windows: Microsoft Word, LibreOffice, Google Docs (upload/open)
macOS: Microsoft Word for Mac, Pages (import), LibreOffice
Mobile: Microsoft Word app, Google Docs app
Online: Word for the web or Google Docs

Common problems

File won’t open (corrupt download or interrupted save)
Formatting changes between apps (fonts/styles)
Missing images or broken embedded objects
Password-protected or restricted editing
Compatibility issues with very old Word versions

History

DOCX was introduced with Microsoft Office 2007 as part of the Office Open XML standard. It replaced the older .doc format and became widely adopted because it is more resilient, more structured, and easier for other programs to read and generate.