Markdown Documentation (.mkd)
The MKD file extension stands for Markdown Documentation and is used primarily for creating formatted text using plain text. Originating in 2004 by John Gruber, Markdown offers a simple way to write documentation that is easy to read in plain text and can be converted to HTML for web presentation. Its simplicity and readability have made it a popular choice for software documentation, technical writing, and even blogging. The MKD extension supports various formatting options, including headings, lists, links, and code blocks, making them versatile tools in the IT industry.