MATLAB P-code files are compiled MATLAB files that can be executed but not easily read or modified. They are often used to distribute MATLAB code without revealing the source. Decoding or decompiling P-code files can be useful for recovering the original MATLAB code, though the process may not always yield perfectly readable or editable code.
: If the original author provided a matching .m file containing only comments, you can still view the help text by typing help filename in the console.
: Many files labeled as decoders in .7z or .zip archives on shady forums are actually malware or trojans . Instead of unlocking code, they unlock the user's workstation to hackers.