Files with j2 suffix can be most encountered as interactive story files for Gargoyle.
J2 file extension - Gargoyle story file
What is j2 file? How to open j2 files?
File type specification:
File extension j2 seems to be mainly associated with the Gargoyle, a discontinued software for reading interactive fiction stories available for Microsoft Windows operating system.
A .j2 file stores interactive story for Gargoyle.
This j2 file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.