This opens an information window giving details about the active file:
The information provided is:
File name
Sound Family
Sound Type
Number of sound channels
Sound sampling frequency (sample rate)
Total number of sound samples
Total sound length in seconds
The properties window is slightly different for indexed files. For instance, if the current indexed file format allows text comments within the indexed file, then the comment for the currently selected prompt will also be shown in the properties window. It may look like this:
The Properties command can also be activated by clicking on 
in the toolbar section.