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what is a zipx file

PeaZip is a free cross-platform file archiver utility that provides an unified portable GUI for many Open Source technologies like 7-Zip, FreeArc, PAQ, UPX... free alternative to WinRar, WinZip and similar proprietary software.
- Create 7Z, ARC, BZ2, GZ, *PAQ, PEA, QUAD/BALZ, TAR, UPX, WIM, XZ, ZIP files
- Open and extract ACE, ARJ, CAB, DMG, ISO, LHA, RAR, UDF, ZIPX files and more,
over 180 archive types supported
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What is ZIPX file format, WinZip archives



zipx extension



ZIPX file extension designates a compressed archive format developed by WinZip team, starting from WinZip 12.1 (released as trialware program on 13 September 2008) as alternative to classic PKZip's ZIP archiving format standard.

WinZip's ZIPX standard is based on ZIP specifications with introduction of newer data compression algorithms - LZMA, PPMd and others (superseding classic Deflate, Deflate64, and BZip2 algorithms) - and employing custom pre-compression filters (WavPack and JPEG filter) to improve compression of images and other media data structures.
This results in zipx format providing higher, improved compression ratio compared to classic zip format, at cost of higher computational cost, comparable with compression ratio of formats like RAR, ACE, and in some cases 7-Zip's 7Z / XZ files - modern archiving formats also relying in LZMA and PPMd -family compression algorithms and multimedia precompressors.
Also, ZIPX files supports new AES-based WinZip's AE encryption (128 bit and 256 bit) - and optionally, for legacy support only, old ZipCrypto (Zip 2.0) cryptography.
Like for ZIP files, WinZip provides its custom file spanning scheme for splitting ZIPX archives (Z01 extension).
File extension modification from zip to zipx was intended to avoid ambiguity with users (openly marking it as new type, with new extension) and prevent older archivers to try to handle the new zipx standard as it was a classic zip file, failing to support its newer features.

PeaZip can open and extract ZIPX files, but features read-only support, meaning the application cannot create / update zipx files.
Custom WavPack and JPEG pre-compression filters, featured by zipx specifications standard, are currently unsupported.

zipx format features


On data compression benchmark page you can compare how .zpix format fares, in terms of compression ration and compression / extraction computation speed, with mainstream formats such as .7z, .rar, and .zip, testing various software implementations (PeaZip, WinRar, WinZip).

External online resources about .zipx archives: ZIPXzipx file format Wikipedia page, WinZip.zipx type Knowledge Base entry for ZIPX standard.

  



  

.ZIPX

WinZip team, 2008

SPEED zipx compression features

Zipx format features average speed: using PPMd or LZMA compression algorithms rather than Deflate, speed is comparable with WinRar' RAR or 7-Zip's 7Z rather than with classic ZIP compression.







COMPRESSION RATIO zipx vs rar vs 7z

Zipx format features very good compression: PPMd, and LZMA algorithms (and use of WavPack and JPEG pre-compression filters) provides compression ratio comparable to RAR and 7Z formats.

ADVANCED OPTIONS zipx specifications

Zipx features good advanded options, and it is designed to employ new AES-based WinZip AE encryption standard. It however lacks recovery records option available for competing RAR format.








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FAQ > Archive file types > What is ZIPX file type

Topics about what is ZIPX file format, native WinZip archives type extension, what are Zipx files features and specifications, characteristics, advantages and disadvantages compared to other archival types, especially with pre-existing PKZip zip standard and closest competitors like rar and 7z:
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