The .VDW file extension is associated with Visio Web Drawings. These files are created by Microsoft Visio, a diagramming and vector graphics application. A VDW file is essentially a web-based version of a Visio drawing, designed to be viewed in a web browser. It contains the visual elements, data, and formatting information necessary to render the diagram within a web page. VDW files are typically generated when a Visio drawing (.VSD or .VSDX) is saved in a web-compatible format. They allow users to share and view Visio diagrams without requiring them to have Visio installed on their computers. The VDW format leverages web technologies to display the drawing, often relying on plugins or viewers to properly render the Visio content within the browser. However, due to evolving web standards and security concerns, the use of VDW files has declined in favor of more modern and universally supported web formats like SVG or PDF.