I just downloaded the trial version of cs6 extended, but the 3D workspace is not included. Help
Which operating system?
" * 3D features and some GPU-enabled features are not supported on Windows XP."
You need Windows 7 (SP1 or higher) to use the 3D features.
And to add to John's comment: 3D will also not be avialable, if your graphics card does not support it or is misconfigured.
i am using windows 7..