How to open Acorn RISC OS StrongHelp data file .3d6 files
Have you had trouble opening the 3d6 file on your computer? What are 3d6 files? We explain what they are and recommend software that we know will open them.
What is 3d6 file?
A 3d6 file extension is related to the Acorn RISC OS StrongHelp data format.
Acorn RISC OS StrongHelp data file description
It is, under RISC OS, a "StrongHelp file" which is an image consisting of a number of data files (RISC OS's hooks make doing this sort of thing possible - a single "file" becomes a virtual filing system that contains files). Anyway, StrongHelp was designed to provide marked-up online help in the days before anybody knew what HTML meant.
Suggested software to open 3d6 file
A help system for RiscOS