I have read that the XBox One formats external hard drives in NTFS format. My understanding from reading pages such as this one is that NTFS support should work "out of the box". However, when I plug the drive into my Linux machine, nothing gets mounted. In dmesg I see that the device was recognized, but fdisk claims there is no partition table. I have read about a Windows utility that is needed (on Windows, at least) to modify the MBR of the drive to switch it between "XBox Mode" and "PC Mode" so my suspicion is that a similar thing needs to be done in Linux - but I can't find any documentation on exactly what it is doing. Alternately, maybe NTFS simply isn't working out of the box - I don't see ntfs under /proc/filesystems, for instance, and a naive attempt to "modprobe ntfs-3g" failed to find anything.
I'm running (L)Ubuntu 18.04.3 LTS.