Changing a .dae into a .ent

[The chaser]

@BeeKayK: It's .dae, not .dea

So:

The .dae file is the model itself, with the UV texture coordinates, the assigned textures, etc. The .ent file, is a simple file which tells the game what thing that is: If you change the Type of a door from SwingDoor to <Object<Grab, you can grab the door and carry it freely, like if it was a box.

I think that in the wiki there are some tutorials on how to do this, so try luck there