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Your English is good. As you want a .3ds format file, you are using 3DS Max modeling software, yes?
As far as I know, the new 400 Series cameras do not yet have support for 3D model creation from commercial software like ReconstructMe and ItSeez3D. It is possible to export a model file, though it takes some work.
First, you need to create a 3D point cloud and export it as a .ply file. the link below explains how to do this easily in the RealSense Viewer software.
When you have created your .ply file, you need to convert the point cloud to a mesh. this can be done with software called MeshLab.
There is a guide to doing this conversion with MeshLab.
There is also a YouTube video guide for using MeshLab to convert a .ply to an .obj, which should be easier to import into 3DS Max and turn into a .3ds file.
The camera can only capture the detail for the area that it can see. to create a 360 degree model, you need to take a series of captures and then combine them into a single model in 3D modeling software. You can do this either by putting the object on a rotating turntable (best for stable object scanning) or walking around the object whilst holding the camera. In the case of human face scanning, it may be easiest to have the camera in a static position and turn your body 360 degrees on the spot.
The easiest way to do 360 degree object scans with the old RealSense camera models (SR300 and R200) is Cappasity's 'Easy 3D Scan' software.
ReconstructMe can do similar with the old RealSense camera models.
A third body scanning option for the old camera models is ItSeez3D.
I do not know of a commercial solution that works with the new 400 Series cameras yet though. If any of the above packages are flexible enough in their implementation of RealSense to work with the new cameras too, it has not been reported back to us yet.