Small Appliance Repair Questions? Ask a Technician ASAP
May I ask how you Unzip the files usually ?
Are you able to test a different file to check all else is OK, the new file may be corrupt
Just in case we don't touch base for a while... you are probably heading for bed as we are having breakfast... try this free software to do the unzipping, have used it for years with great results ... 7Zip