DOCX (Microsoft Word Document)

The DOCX file format was developed by Microsoft for its 2010 version of the Microsoft Office Word document application. It is an XML file-based format wrapped in a compressed ZIP file and is the successor to the older legacy binary DOC format.

DOCX document files have over time become one of the standard formats for editing and storing complex word processing document data. Although developed for the Microsoft Office suite of programs, the DOCX format can be opened by many third-party programs and remains the most well-known document format today.