Convert Assembly into Part (SW2012)

Hello,

I cannot convert an assembly into a single part. I saw earlier post on this where it just takes Save as>and save as part.

However my save as window looks like (see bellow)

There is no option to save as a part at all. I'm using SW2012 Student Design Kit. Please help me solve this

Best Wishes,

Robert

SolidworksAssemblies