Saving new files locally only.

New to 3Dx! Looking for some clarification about working with files locally. I'm familiar with Windchill. When I would open a stp file assembly to just look at it. I could save it to my local workspace without introducing it to the commonspace (main database). That way I don't clutter up the database if I'm opening a bunch of files... but then can clear them out of my workspace when I don't need them. Thanks in advance!