Pretty much the only third-party program I've been using is skraper in order to get video files for games as I do not have a membership on emumovies. With the 7z, I did try before to use 7z files for Sony Playstation which I later found that they didn't work for my emulator so I deleted all the games on launchbox and reimported them as .cue's. Not sure if scraping the 7z's before reimporting the files as .cue's did anything...
I don't really know what I'm doing when it comes to files so here are screenshots of the data folder if it helps