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October 11, 2026
.Z01
Split ZIP Archive - First Part
Compressed Files
updated Jul 2, 2026

.z01 is the first of multiple files that together form a split archive, widely associated with WinZip. The file stores compressed data that, when combined with all remaining volume files, reconstructs a complete ZIP archive. The split-ZIP convention is…

SIGNATURE504B0304"PK\\x03\\x04" - ZIP local file header (data continues from here)
OPENS ONLinuxMac OSmacOSWindows
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