How to convert u3d to obj without photoshop?

Question

3D

There is a program, the only format for exporting a 3D object from which is to the u3d format.
Tell me, is there a program other than Photoshop that allows you to directly open u3d and preferably export to obj or 3ds?
Now I have to open it in Photoshop, export it to obj, which is very inconvenient (