Source for UTM Zone File

Will this do: http://www.baruch.cuny.edu/geoportal/data/esri/world/utmzone.zip I haven't taken a close look at it, but it looked like it has the exceptions on there.

Adding another just in case those links go stale: Global UTM Zones Grid — EPDI | EnviroProjects Digital Initiative. It's CC licensed, and has the exceptions around Norway and Svalbard.