.IQM File

The iqm file extension is associated with the Inter-Quake Model format, a binary skeletal-animation format designed for extensibility, efficiency, and ease of loading.

It is developed for Quake and Quake-like game engines (id Tech 2 game engine).

How to open:

Use Inter-Quake Model format development kit to open *.iqm files.

How to convert:

Some sort of export is perhaps possible using the Inter-Quake Modeling tools.