An s2s file extension is related to the SRT2SUP native subtitle format. Seems to be obsolete.
There is one other file type using
the S2S file extension!
.s2s - Spike2 script
S2S file extension - SRT2SUP native subtitle format
What is s2s file? How to open s2s files?
File type specification:
The s2s file extension is associated with SRT2SUP a software for Microsoft Windows operating system that allows users to create subtitles for movies.
The s2s file stores subtitles in native subtitle format for SRT2SUP.
This s2s 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.