You cannot directly copy saves from an Xbox One/Series X to a USB drive in the same way you did on the 360. The files are locked behind the "Cloud."
Whether you are a veteran looking to skip the grind for the 10th playthrough or a newcomer stuck behind a game-breaking bug, knowing how to edit your save file is an essential skill for any Capital Wasteland explorer. fallout 3 xbox 360 save editor
In the pantheon of open-world RPGs, Fallout 3 remains a titan. Released in 2008 for the Xbox 360, PlayStation 3, and PC, Bethesda’s vision of a post-apocalyptic Washington D.C. captivated millions. However, even the most devout Vault Dweller has hit a wall: the infamous "Mister Sandman" perk glitch, a broken quest trigger, or simply the desire to skip the grinding for bottle caps and rare weapon schematics. You cannot directly copy saves from an Xbox