The .9 file extension is most commonly associated with IBM Embedded ViaVoice applications. ViaVoice is a language-specific speech recognition software used in embedded devices. The files with the .9 extension contain language-specific script data that is used by the application.
The .9 file extension is also used for Salt Lake City game music files and screen log files.
Try a universal file viewer
File.org aims to be the go-to resource for file type- and related software information. We spend countless hours researching various file formats and software that can open, convert, create or otherwise work with those files.
If you have additional information about the 9 file format or software that uses files with the 9 suffix, please do get in touch - we would love hearing from you.