I know that boss extdata are the data downloaded via SpotPass. I THINK (correct me if I'm wrong) that Checkpoint DOES NOT back up boss extdata, whereas JKSM does.
What I don't know and would like to ask is: should I be backing up boss extdata? If...
Guys, a question: when i do extdata's backup with checkpoint, it makes bossextdata's too? Or i have to use jksm? I'm asking because i think i should do bossextdata's backup because they are spotpass content, so i think if they're missing i lost...