how can i open these files (STW) ? *.dat - *.ent

[Twisted]

Help me to find out a way to open these files, they are from the game Spartan Total Warrior

1 - Samples.dat - in the folder of particles

2 - Test.ent - in the folder of entities

Link for the complete DATA archive: https://www.sendspace.com/file/oyugfx