: Named November29.z01 , November29.z02 , and so on. These volumes contain the actual compressed data bits that didn't fit into a single file. Purpose and Function

Split archives like "November29.z01" were historically popularized to fit large programs onto multiple floppy disks or CDs. Today, they are primarily used to bypass: Downloads with multiple parts (.z01 and .z02 files)

The .z01 extension indicates that this is the in a sequence created by compression software like WinZip or 7-Zip . A standard multi-part ZIP archive typically consists of:

: Usually named November29.zip . This file contains the central directory (the "index") of the entire archive.