What is Microsoft expression web 4?

Microsoft Expression Web 4 is a discontinued HTML editor and web design tool that was part of the Expression Studio suite. It provides a visual design interface for creating and editing websites, supporting standards such as HTML, CSS, and XML. The software allows users to work in both design and code views, making it suitable for both novice and experienced web developers. Although it was replaced by other Microsoft tools, it remains notable for its features aimed at web professionals.