.CIB File Extension

Luminaire file used by lighting simulation tools like DIALux, a professional light planning software for indoor and outdoor lighting; contains data about the lighting specifications of a light fixture, such as power, luminous flux, and light intensity; written in the CIBSE format.

To open a CIB file in DIALux, select File → Import → Luminaire files..., navigate to your file, and click Open.

NOTE: The CIB file is similar to other Luminaire data files such as .LDT, .ELD, and .IES files.