Corrupt Zip file after download

I selected multiple files from my ODfB site, chose Download, receive prompt with file name for a zip file, chose the destination and after download completion, When I try to extract the file,  I get Windows cannot open the folder, The Compressed folder is invalid error message.

This is on Win 7, with IE 11. This KB article states that we can't download from ODfB using IE 11, but I was able to do that step without any issues. Is this just a poorly written KB or is there something else going on?