@CarlaL, One of the programs that I suggest that you download is S3pe (which is a package editor) where you can open up your package files to see just exactly what you are getting. CC sliders come in package format as they are script mods. And S3pe has never been a corrupt file either, so it is safe to download and use as it comes from a reputable source.
http://simlogical.com/s3pe.htm
I started playing Sims 3 in 2017 (never played any other Sims game before hand - too busy working a 9-5 job when the first one came out in 1999) and by June of that 2017, I was exhorted to use CC. It took me a while to figure it out, but on the whole the Sims 3 playing experience is even better with custom content.
