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I have nine files with extension abc.z01 to abc.z09

How to join them?

winrar,winzip and 7zip fails to join or extract them

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Dani AI

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A note on what those extensions mean and why extraction fails: files named abc.z01, abc.z02, ... are usually parts of a split (spanned) ZIP archive. One segment will carry the .zip (or .zipx) extension and that segment contains the archive index/central directory that archivers need to open. With WinZip-style splits you open the .zip file and the archiver will pull data from the numbered parts automatically. (kb.winzip.com)

Practical checklist (covers the common causes you saw in this thread where extraction failed until the main piece was present): put every part into a single folder; verify every filename has the exact same base name and the numeric extensions are in sequence; do not change the order by renaming. Use 7‑Zip, WinZip or a similar tool and open the .zip file (not a .z01 directly). If extraction still fails, one of the parts is likely missing or corrupted — request that part again or re-download. This echoes the earlier observation about missing pieces leading to failure. (support.firmex.com)

If the .zip (index) really is missing and getting it is impossible, the usual last‑resort is a binary join of the parts in the correct numeric order to make a single ZIP and then open that file. On Windows use copy /b part1+part2+... combined.zip; on macOS/Linux use cat part1 part2 ... > combined.zip. Only do this if the parts you have include the archive index; otherwise the join will not recover the contents. Try the simple binary merge carefully and test the resulting archive with 7‑Zip. (bandisoft.com)

(Reference: the original advice from about missing parts and confirming 7‑Zip worked once the primary segment was available.)

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Member Avatar for JorgeM

To be able to extract the data from the split files, you can use WinZip. Since you mention that the process fails, it would seem to me that you may not have all of the required files in that split.

Member Avatar for vizz

Thanks.

main file was missing.
winrar,winzip doesn't worked but 7zip worked well.

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