Files with the extension .WDGT are 'Widgets' (small programs) utilised by the 'Apple MAC' operating system (MAC OS X 10.4 or later).

Widgets are small applications that are available via the 'dashboard', the dashboard is an area of the operating system that can be user selected to bring up a list of installed widgets for selection.

.WDGT files are usually stored in one of two folders:

Standard Tiger widgets are found here: /Library/Widgets:

User installed widgets here: ~/Library/Widgets:

Widget files or .WDGT files are essentially a bundle of files acting as one program.

MAC OSX widgets can fulfil a multitude of purposes including:

Currency converter, photo finder, games, weather updates, etc.