Both .sos and .ros are object styles from Dynamite VSP 3D modeling tool, so if any tool can help you with some kind of export or conversion it would be this one. Perhaps it is just a way to re-save or export different styles, but we have found no particular mentions about this, If you face some particular problem or issue, it would be best to contact 3AM support or reach to the online community.
Updated: April 13, 2023