Miscellaneous

I need to pull some software inventory into Assets. I need to pull Adobe versions, Office Products, and Windows. Pretty much all software with a Product key. For some reason, under my Software Asset, I have about 40 pieces of software showing. Well most of it I don't need. I was wondering if there was a whay to get only what i need in there? Is there someway in the Asset Types to pull the informatiion from all of my computers, or do I have to generate a report first into a .csv file and then import it that way? I have no idea how the software got in my asset to begin with. Any help would be much apprciated.

thanks
Seabass