An sos file extension is related to the Dynamite VSP visualization tool. An sos file contains swept object style data.
.SOS file extension - Dynamite VSP swept object style
What is sos file? How to open sos files?
File type specification:
The sos file extension is related to Dynamite VSP, a 3D visualization tool designed specifically for civil engineers and transport infrastructure planners which is compatible with both 3ds max and Autodesk VIZ.
The sos file used in Dynamite VSP contains saved sweep object style.
The default software associated to open sos file:
Dynamite VSP 
(obsolete software)
Company or developer:
3am Solutions (UK) Limited
Dynamite VSP is 3D modeling tool that is used to render 3D engineering design data into rendered 3D visualizations. Seems like discontinued product.
List of software applications associated to the .sos file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open sos file, edit sos file, convert sos file, view sos file, play sos file etc. (if exist software for corresponding action in File-Extensions.org's database).
Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting sos files.
Software that open sos file - Dynamite VSP swept object style
Programs supporting the exension sos on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about Dynamite VSP for open sos file action.
Microsoft Windows:
Dynamite VSP (obsolete/discontinued)
