DOC or DOCX is a documenting format developed by Microsoft. DOC and DOCX formats are mainly used in the Microsoft Office Word application. DOCX is the newer and enhanced version of the DOC format. DOC and DOCX documents contain text, images, shapes, styles, graphics, animations, videos, and page formatting. After Microsoft Word 2003 DOC format became open where before that it was a proprietary format. After Microsoft Word 2007 the default format and extension become DOCX where before that DOC was the default format and extension.
Structure Of DOCX
DOCX is a compressed file that contains data in different formats like XML, Image, Binary, etc. We can see the content of a DOCX file. We can extract a DOCX file with the 7zip program. We have the following DOCX document etc.

When we extract this file we will see the following files and folders.
_rels
provides information about this DOCX file locationscustomXml
docProps
word
contains most of the information about DOCX file like fonts, media, theme, footnotes, etc.[Content_Types]
provides information about types of media inside the DOCX file

Edit DOCX File
We can edit DOCX file with an office application. As DOCX is very popular format there are a lot of office applications for different platforms like Windows, MacOSX, Linux etc.
Windows
- File Viewer Plus
- Microsoft Word
- Corel WordPerfect X9
- Apache OpenOffice
- Hamcom ThinkFree Office
- SoftMaker Office
- Kingsoft Writer
- LibreOffice
- Google Drive
- Microsoft One Drive
MacOSX
- Microsoft Word
- Apple Pages
- Planamesa NeoOffice
- Apache OpenOffice
- Hancom ThinkFree
- LibreOffice
- Apple Preview
- Google Drive
- Microsoft One Drive
Linux
- Apache OpenOffice
- Hamcom ThinkFree Office
- LibreOffice
- Google Drive
- Microsoft One Drive
Web Based
- Google Drive
- Microsoft One Drive
IOS
- Microsoft Word
- Apple Pages
- Infraware Polaris Office
- MobiSystem Office
- Google Drive
- Microsoft One Drive
Android
- Microsoft Word
- SoftMaker Office
- Kingsoft WPS Office
- Infraware Polaris Office
- Google Drive
- MobiSystems OfficeSuite
- Microsoft One Drive
Free Light DOC and DOCX Viewers
In this part, we will use Free Viewer Lite applications which is a free program which can open and view Microsoft Word DOC and DOCX files. This application also opens and view PDF, Excel and Video Files. Download Free Viewer Lite from the following link and install with classical Windows Next
->Next
https://objects.liquidweb.services/fvp/fvl_setup_141105u.exe
We can also use WordPad which is provided by Microsoft Windows operating systems.

Convert DOC and DOCX Formats
We can change the DOCX format into other formats like DOX, ODT, DOTX, TXT, RTF, MHT. We will use Microsoft Word which provides extensive convert options. We will click Export
->Change Format
-> …
