were you able to open the product in its native format? I've helped some people who struggled because they were importing into a program that was able to import certain formats in theory. Theres so many programs and formats, its tricky to know whether it will work without being able to test every single one, i.e I often use Deep explorer to view different formats but that doesn't guarantee something like C4D or Blender will cope with something exported from 3ds max