I turned in the wrong file. May I turn the right one in late?
My apologies, but I can’t do anything that’d be a saving grace for this instance. Please see the general reasons we do not—cannot accept late work. For this specific situation, here is some advice.
I so love build infrastructure tooling, because we can chain things together that test the zip files, and automatically build and execute programs in a sandbox environment, and assure that they work, after every time we build something. Things like this mix well with a git repository, so that after every check-in, if you want, you can have it testing that everything works like you want. If you want additional assurance that a zip archive really and truly contains what you want, where you want, and has contents that do what you want, this is one way to achieve it.