it said

your model is contain 9934 polygons

you can't convert more than polygons at that status!

So what i can do to use thise 3ds models i wont use these models only ( small cars & planes )i have to use skeletons and others model

what i can do ???????

Hi Osama, 

You can use a polygon reducer (Cruncher) to reduce the model polygon count.
            It should be no more than 4000 polygons.

You can check www.mootools.com for such a tool.