Files with sys-cgi file extension may exist. However, at the moment, we do not have any information regarding their origin or purpose.
SYS-CGI file extension - Unknown file extension
What is sys-cgi file? How to open sys-cgi files?
File type specification:
The sys-cgi file extension seems to be in use for certain files that are mentioned on the internet. However, we have not yet found their original program nor any specific information about it.
If you know some more useful informations about the sys-cgi file extension, please let us know in the discussion below or on our forums.