I have been trying for 2 days to download a large zip file. Twice it has said 100% and BOTH TIMES there has been a message "Can Not Move To Library".

So, I've search my computer for the supposed 100% complete large zip file, and it is not on it.

Where does it go? What does that "Can Not Move To Libaray" message mean? And how can I fix it?

It means the folder where you said to download it is not there. Go back and check your settings.

No, that isn't the answer. I download everything into the same file. The file is there.

That is why I am wondering if it has to do with the size (this one is 361,000 kb+) or if it could mean that it is a corrupt file.

Sometimes it means that there is an illegal character in the name of the file. I don't think there is anything you can do about that.

Have you looked in your Incomplete Folder for the file? It may be in there and you may be able to open it. If it works, manually move it to another folder.

I suggest doing a search of the forum for "move to library" Your issue has been discussed numerous times in various threads.