3D Model Import - compatibility

I have a 3D wireframe model of an aircraft and would like to use this to generate an aircraft model for FS2004.
I can export this wireframe model from our 3D modelling software in the following formats:
.3DS
.AI
.DWG
.DXF
.IGS
Can anyone tell whether any of the common aircraft modelling applications accept any of the these formats?
Cheers
Noise Unit
I can export this wireframe model from our 3D modelling software in the following formats:
.3DS
.AI
.DWG
.DXF
.IGS
Can anyone tell whether any of the common aircraft modelling applications accept any of the these formats?
Cheers
Noise Unit