SuperJPG thumbnail cache
SuperJPG thumbnail cache is a thumbnail cache file created by SuperJPG, a proprietary image viewer and file manager. The file is normally named superjpg.tnc. SuperJPG was developed by Midnight Blue Software, which went out of business around 2004.
Some or all files begin with
- A web search for "superjpg.tnc" should turn up some files.