What Means Docx Files
docx means:Docx represents Word Microsoft Office Open XML Format Document file. It can be opened by Office 2007.
Docx is document in XML format. It can be opened with current Office package.
If you want to open this kind of files without using Office programmes you can convert documents and then open it with Windows.
Besides, You can download Open Office software and use it as Microsoft Office.
There is a difference between Doc and Docx file types:
Doc: It is the old version of word files which used with Word 1995.
Docx: It is the new version of word files which used with Word 2007.
Docx requires Office 2007 to open the files.
Definition softwares of Docx file
Oficce 2007, Open Office
Meanful links for Docx file