May - last edited May
What is the file path to that location? The screenshot does not include it, so I am unable to attempt to track the same location. (Never mind, I found it.)
These files appear to be part of the default installation, and are associated with starting files for each "pack" of the game. I would not remove these files, as in the event that you may have to create a new neighborhood, it will not have the default files to refer back to.
Using CC/Mods is at your own risk, EA are not responsible for making the game compatible with 3rd party content, the creator is.