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PeaZip is a free cross-platform file archiver that provides an unified portable GUI for many Open Source technologies like 7-Zip, FreeArc, PAQ, UPX...
Create 7Z, ARC, BZ2, GZ, *PAQ, PEA, QUAD/BALZ, TAR, UPX, WIM, XZ, ZIP files
Open and extract over 180 archive types: ACE, ARJ, CAB, DMG, ISO, LHA, RAR, UDF, ZIPX files and more...
Features of PeaZip includes extract, create and convert multiple archives at once, create self-extracting archives, split/join files, strong encryption with two factor authentication, encrypted password manager, secure deletion, find duplicate files, calculate hashes, export job definition as script.

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FAQ / COMMON ARCHIVE FORMATS > RAR FILE FORMAT
open source rar

RAR file format



WHAT IS RAR FILE FORMAT

RAR FILES, READ MORE

rar extension



RAR is a popular archive format introduced by RarLab program WinRAR (shareware file archiving utility, free for 40 days) for Microsoft Windows platform; the software was ported to Linux (only as extractor) by the same Author, Eugene Roshal. Initial application release dates back to 1995, last RAR5 standard revision is from 2013.

RAR format is well known for the high compression ratio archives (superior compared to zip, comparable with 7z and zipx formats), based on Lempel-Ziv (LZSS) and prediction by partial matching (PPMd, Dmitry Shkarin).

RAR standard also features strong encryption
  • RAR4 revision rely on AES-128 based encryption

  • RAR5 uses AES-256 in CBC mode, with improved key scheduling

Notably, .rar archives provide advanced error correction / data recovery capabilities (recovery records, optional).

Read also: how to open RAR files, how to create RAR files

  



  

.RAR

Author Eugene Roshal, 1995

SPEED rar specs

Good, even employing powerful advanced comperssion tecniques, handling the format is remarkably efficient in term of speed.







COMPRESSION RATIO rar format

High, comparable but slightly inferior to 7z.

ADVANCED OPTIONS what are rar files

Excellent. Most notable feature is native support for recovery records, that allows to recover archives from moderate corruption states.






RAR files, read more


External online resources: WinRarwinrar file type official domain, RAR formatrar file format Wikipedia entry, what is error correctionRAR recovery records, 7-Zipopen source rar

Topics and search suggestions: what is rar file format, opener, download free WinRar alternative Open Source software, what is .rar file extension wiki, non free rar format licensing, how do I open rar files (handle, decompress, "unzip", read, view content, browse & search compressed data), royalty free rar software, windows and linux unrar tool.



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