If you were looking for a specific software named "RPYC Extractor" rather than the general method, it is likely a GUI wrapper for the Unrpyc tool mentioned above. The functionality remains the same.
: It can use existing translation data to emit script files in a different language. rpyc extractor
Here is a text put together explaining the tools and process for extracting text from RPYC files. If you were looking for a specific software
CensoredUsername/unrpyc: A ren'py script decompiler - GitHub rpyc extractor