When you come across split ZIP files that look like sequential part numbers, before extracting files out of the archive, you first need to join the split files together into a single, complete, ZIP file.  A split ZIP file could look like this, for instance: 691-5088-A.zip_.001 691-5088-A.zip_.002 691-5088-A.zip_.003 691-5088-A.zip_.004 NOTE: Just so it's clear to everybody, this article talks about ZIP but it obviously works on...