
It was in the 1990s that Microsoft chose the doc extension for their proprietary Microsoft Word processing formats. Almost everyone would have used the doc file format, whenever you write a letter, do some work or generally write on your PC you will use the doc file format. Historically, it was used for documentation in plain-text format, particularly of programs or computer hardware, on a wide range of operating systems.


However to open it using any Microsoft Word that predated 2007 would require DOCX to be converted into a normal doc format.ĭOCX improves file and data management and data recovery. The benefit of having open XML is that it is able to be read by applications, platforms and Internet Platforms. DOCX was introduced with Microsoft Word 2007, it's based on open XML and uses ZIP compression for smaller file sizes.
