A quick Google search for something like "fix zip file" brings up a host of promising tools, some of which are free, and all promising that they're the ideal choice for all your archive repair needs.

DataNumen Zip Repair is a free ZIP recovery software for Windows to repair and extract corrupted Zip file. You can batch repair corrupted zipped files.

Microsoft is aiming to fix a lingering issue affecting .Zip files in the October 2018 Update by "early November." ...

Need to fix a Zip file? Zip repair tools tested When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Page 2 of 2: How we tested and Zip repair ...