The Viewer for 3ds files with possibility to walk around objects.
You can open a lot of 3ds files together.
You can scale and rotate the 3ds-objects.
You can walk around and inside the 3ds-objects.
Simply use 4 arrow buttons for rotate or walk around the object.
Use "plus" and "minus" buttons on numpad for scale the object.
Use "Man" button on toolbar for switching "walk" or "look" mode.