A true "generator" would need to hack into Microsoft’s secure Xbox Live servers to inject data. This is not something a simple downloadable .exe file can do. Any tool claiming to be a server-side injector is almost certainly lying. The security protocols protecting Xbox Live are military-grade; if a hacker had the ability to inject achievements at will, they would likely use that access for data theft or to crash services, not to boost Gamerscores for random players.
Using an "Xbox One achievement generator" generally refers to third-party software designed to artificially inflate Gamerscore or unlock achievements without playing the game achievement unlocked xbox one generator
However, the Xbox One generation introduced a fundamental shift: A true "generator" would need to hack into
These are websites or software claiming they can "inject" achievements directly into your Xbox profile without you actually playing the game. The Risks of Using Achievement Hacks achievement unlocked xbox one generator