Sometimes help functionname will still display the H1 comment line even if the file is p-coded, giving you a hint of its usage.
This won't give you the code, but it will show you what other files the p-code depends on. matlab pcode decoder7z best
The keyword "decoder7z" refers to the fact that some older versions of p-code were essentially wrapped or compressed containers. Sometimes help functionname will still display the H1
MATLAB often keeps a history of commands and scripts in your preferences folder. MATLAB often keeps a history of commands and
Users sometimes attempt to open or extract .p files using 7-Zip to see if the internal bytecode or temporary scripts are accessible.
Strictly speaking, MATLAB p-code is designed to be one-way. There is no official "un-pcode" button in the MATLAB environment. However, the community has developed several workarounds over the years. 1. The 7-Zip (7z) Extraction Theory