If "openly" you mean editing, then of course not. The "p" in pcode is for the "protected" - its main design goal is to deploy a functional component while protecting its source.
If "open" you mean run - then, of course, yes. Quote guide:
You call the resulting P-code file in the same way as you call the source MATLAB.m file from which it was received. For example, to call the myfun.p file, type
[out, out2, ...] = myfun (in1, in2, ...);
Ofek shilon
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