Matlab File not running when selected from a Zip file

I compressed a Folder into a zip file with multiple Matlab functions and a Matlab script and labeled it Project1. However when I opened it and ran the matlab function "Project_1.m", it gave me an error, "Undefined function or variable 'Problem2'." I have to "Problem2.m" file in the same zip file but it keeps giving me this error no matter what I do. What do I need to do to fix this?

Answer 1

[Rik]

Although Windows explorer can treat zip files as if it is a folder, Matlab does not. You will have to extract all required files from the archive and run your scripts from there.