Why are new classes encoded in UTF-16 (LE)?

Unreal Engine 4.9.2 - Mac 10.10.4

My Actions:
Unreal Editor → Content Browser → Add New → New C++ Class → Choose Parent Class = None → Name = MyClass

The files generated are encoded in UTF 16 (LE) which XCode and Unreal cannot compile. I cannot find a setting anywhere to change the default encoding of new C++ class files.