Converting .3d files to .obj or .dae (Unreal engine 1 stuff)

[Plamz Doom]

You need Gildors Unreal model viewer tool:
https://www.gildor.org/downloads
And here small tutorial on YouTube:
https://youtu.be/pE_jLKU7ucA
But not every game do works.

Yeah i know that but once i export them they are in .3d format which seems nobody knows what it is. It says it will export it as pskx but it doesn't. soooooooo yeah no clue.