ZTC file extension - Zortech readme file
What is ztc file? How to open ztc files?
File type specification:
The ZTC file extension seems to have been in the past used in one of the programs from Zortech, which was a small UK company that marketed C and C++ compilers and associated software until it was acquired in 1991 by Symantec. Most likely ZTC is very old file type and no longer used.