Microsoft had annoucned back in January that Windows 10 would be coming to the Xbox one via a future update. Phil spencer (Xbox Boss) has assured fans and users that the games console will not be morphed into an "enterprise-centric device".
Its not clear yet how it will operate but we are pretty sure we will not see people using excel on the xbox. "But Microsoft is making it easier to port experiences from PC over to Xbox where they make sense". Spencer said at the time.
We have our hopes high to see Cross-platform play between PCs and Xbox ones with Windows 10.