You can import and export a file saved in OBJ format (the Wavefront Object file format).
To import an OBJ file into Softimage
Set the options in the Wavefront Import Dialog Box.
Enter a path and file name for the OBJ file you want to import. Its name appears in the Filename text box.
You can click the Browse (…) button to select a specific location and filename from a browser.
The imported objects are added under the current scene root.
You can export a single object, multiple-selected objects, or all objects in a scene to the Wavefront Object (*.obj) format. Exported files are saved with an .obj file extension.
To export scene objects to the Wavefront Object format
Select the object or objects to be exported. If no objects are selected, the entire scene is exported.
Set the File Output and Geometry Options in the Wavefront Export Dialog Box.