The *.ddt file extension is related to the Jill of the Jungle a platform action computer game and used for its game data files.
DDT file extension - Jill of the Jungle game file
What is ddt file? How to open ddt files?
File type specification:
The DDT fill extension is associated with the Jill of the Jungle a platform computer game for MS-DOS operating system developed by Epic MegaGames Studio. The *.ddt file contains game data.