.IWDGT File Extension

Widget bundle used by Apple iWeb, a Web development tool for Mac OS X; contains a Web resource bundle, which can be included as a standalone Web page component; used for inserting navigation bars, headers, footers, RSS feeds, and other components into Web pages.

iWeb includes several preinstalled widgets that are located in the following directory of the application bundle: /Contents/Resources/Widgets/. Each widget contains Web content such as images, HTML pages, and JavaScript files.