Premade Characters, where to import them?

[Tittan]

I was asked to do a oneshot this evening, and thought I'd save some time by downloading five premade characters from Dungeon Master's Guild. I went and got the FGU version, and now I have no idea what folder to place them in to find them in my campaign.

EDIT: Sorry, I was multitasking and didn't quite read the guide on DMG. Got it sortet when I managed to breathe and read.