.$cx is Roxio Retrieve data
Key Features: .$CX File Extension
What is an .$CX file?
Files with $cx file extension are commonly used by Retrieve, a software for Microsoft Windows operating system developed by Roxio.
The $cx file stores some kind of data used by Roxio Retrieve application.
This $cx 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.