.NCFG File Extension

Application configuration file used by ArcGIS Explorer, a free GIS program developed by ESRI; contains settings that customize the program, including the user interface, splash screen, logo, application title, and application permissions; allows users to control the appearance and behavior of ArcGIS Explorer.

NCFG files can be shared via email or hosted by a network location. This is useful in office environments for system administrators who want to streamline enterprise-wide installations, each with specific capabilities, limitations, and appearances.