Yes I forgot to mention that part about Excel... Good news, though, I finally got it to work but for no rhyme or reason.
For editing I'm using an XML editor and using its "grid view" that resembles a spreadsheet. I used another website's public API for getting genres and descriptions, as GamesDB seems to still has a lot of growing pains to go through. For example, "Racing Game 1" will have a genre of "Racing/Simulation" and its sequel "Racing Game 2" will have a genre of "Racer Game". Also, the descriptions can sometimes leave a lot to be desired. So far the Excel/XML editor combo has worked for copy/pasting thousands of entries at a time as long as I take out html tags and carriage returns.
If there was a way to copy/paste into Launchbox's list view, though.... FEATURE REQUEST! Haha... still enjoying the app very much, keep up the good work.