Files that contain the .3 file extension are most commonly associated with the IBM Embedded ViaVoice technology. ViaVoice is a speech recognition software application that was developed by IMB.
The .3 files that are used by the software contain language-specific script data that is used by the software application to recognize different spoken languages.
The Unix Help System also uses the .3 file extension. These files are used for the main page files that are referenced by the system.
The .3 file extension is also used for Salt Lake City game music files. The files hold a track of music that was played at the Olympic games that were held in Salt Lake City, Utah.
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