NVivo for Windows vs Mac
Mac users: please note that the full functionality of NVivo for Windows is currently only partially available in NVivo for Mac. The file extension for NVivo Windows projects is .nvp while the file extension for NVivo Mac projects is .nvpx. You can convert .nvp project files to .nvpx and vice versa, but doing so on a regular basis is not recommended.
Find out more about differences between NVivo for Windows and NVivo for Mac here.