An rzx file extension is related to ZX Spectrum emulators and used for input-recording format.
There is one other file type using
the RZX file extension!
.rzx - File Crypt encrypted data
RZX file extension - ZX Spectrum emulator input-recording format
What is rzx file? How to open rzx files?
File type specification:
The rzx file extension is associated with some emulators of Sinclair ZX Spectrum 8-bit home computer. An input-recording format. The RZX Archive contains an increasing number of .rzx files which can be downloaded and replayed using any emulator that supports this format.
This rzx 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.