Files with rak extension can be usually encountered as configuration data files for Sensor+ CEM+ software.
RAK file extension - Sensor+ CEM+ rack configuration
What is rak file? How to open rak files?
File type specification:
File extension rak is associated with Sensor+ CEM+ version 2.0.0. software and used for files that contain all of the rack configurations and dimmer information including the patch.
Sensor+ CEM+ version 2.0.0. is probably older, no longer supported product. The successor is probably called Sensor+ Connect.
This rak file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.