With ZIP files, extract was your best bet. Do the players report that the file is corrupted, or zero length?? You may need to check with the seller on whether the ZIPs downloaded correctly or see whether you can get another format.

You also could try downloading again using Internet Explorer, if they allow that.

It is also possible that your anti-virus is opening the zip archive for inspection and repacks the archive causing it to get corrupted.

Try to disable the real-time (live) scanning of files in your anti-virus software temporarily to see if that makes downloading work.

Disabling anti-virus did not work The only thing that appears as zero is ratio. I cannot get internet explorer to load at the moment so I'll try my luck with Chrome

Have you tried opening the zip with a un-zip program? Some of them can try to repair broken files.