Microsoft Office has been used since 2007, and its compressed file format based on Office Open XML standard has replaced the previous proprietary default file format. Docx "replaced" Doc "replaced". Xlsx is "replaced". Xls "and" Pptx is "replaced". ppt”)。

Any word processing software that can open a doc file can convert it into a docx file, which takes up less space than a DOC file, and a DOCX file is essentially an XML file. The file format generated by Word2003 is Doc format, while the file format generated by word 2007/2012013 is Docx.

Docx files can't be opened in Word2003, but some users use Word2003 and some users use 2007/20 10/20 13, so there will be a problem that Docx format can't be opened directly in Word2003.

Overview of docx file characteristics

Docx files occupy less space than doc files.

Microsoft has introduced an Office compatibility patch package. By applying this compatibility patch package, users of WinXP, Win7 and Win8.x can open, edit and save documents in new formats used in Word, Excel and PowerPoint2007.

This compatibility patch package can also be used in conjunction with OfficeWord Viewer 2003, Excel Viewer 2003 and PowerPoint Viewer 2003 to browse files saved in the new format. For more information about this compatibility pack, please refer to Microsoft Knowledge Base article 924074.

Docx format file is essentially a ZIP file. After changing the suffix of docx file to ZIP, you can open or decompress it with decompression tool. In fact, the basic file of Word2007 is in ZIP format, which can be regarded as a container of docx files.

The main content of docx file is saved in XML format, but the file is not saved directly on disk. It is saved in a ZIP file, and then the extension is docx. Changed file suffix. Docx format to compress and decompress it. You can see that there is a folder similar to word in the decompressed folder, which contains most of the contents of Word documents. The document.xml file contains the main text content of the document.