Opening a SolidWorks assembly in NX results in a mm file. How can you get an English Units file?
Solution In NX, Check File--> Utilities--> Customer Defaults--> Gateway--> General--> Part tab--> Default Units.
This is the setting that controls the default part units for File Open on non-NX data. Change the setting to Inches and save the change to your customer defaults. Restart NX and open the assembly will it will now result in the part units being INCHES .
Notes and References
Hardware/Software Configuration Platform: INTL64
OS Version: 764