File Extension JAR

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Descriptions. Workarounds. Issues

File Extension JAR

File extension JAR stands for Java Archive. JAR files are based on ZIP format and generally used to distributed Java classes and metadata. Usually JAR files contain .class files which are compiled versions of .java file. Only experienced software developers could read .java and .class files thus it is not recommended for average computer user to work with these files.

File extension TAR is used as archive file format. TAR is also a name of the program to handle TAR files. Initially this format was developed to store large collections of files on tape backups and other sequential access devices. Now it is used to merge collections of files into one large file. This file preserves directory structures, dates and permissions.

File extension 7Z is a compression file format used by 7-Zip application and library. 7z file format is open and publicly available under GNU Lesser General Public License. Following applications for windows currently support 7Z format: Peazip, 7-Zip, Altap Salamander, IZArc (no support for Ultra compression or Solid format), p7zip, PowerArchiver, QuickZip, ShellZip, SimplyZip, Squeez, TUGZip, ZipGenius, UltimateZip.

File extensions LHA and LZH are created by LHA which is freeware compression utility. It was created in 1988 and originally named LHarc. Microsoft has released a Windows XP add-on which enabled Japanese version of Windows XP to open LZH and LHA files.

File extension GZ is used to store files compressed by GZIP or bzip2 utilities. This file extension is very popular in Unix and Linux operating systems. To uncompress such files you will need gzip.exe utility. It is also very frequent to see files like data.tar.gz. It means that this file was initially created by TAR utility by collating large collection of files into one and then compressed by GZip. To get to the files stored in such file you will need first to uncompress it using GZip.exe and then untar it using TAR.exe.

There are many ways to open file with specific file extension. There could be also multiple applications which you can use to open JAR file. Learn more how to open APK file. Also you can try using hex or text editors like HexView or Notepad++ to open jar files.

We hope you found this description of File Extension JAR useful.

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      This article will teach you several simple methods which will allow you to figure out what is stored inside the file.

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    • Find more information about file extension and other file problems in File Extension Knowledge Base

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      It is a very popular trick for an application to claim something it cannot do and instead install malware on your computer

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File Extension Library

Extensions covered by File Extension Guru at this moment:

  pdf    rar    3gp    pps    dat    xls    flv    dll    torrent    bin    unknown    vob    kmz    doc    ppt    exe    sys    mov    mp4    m4a    zip    wpd    dmg    ica    thm    tmp    odt    xpi    bup    wmv    mkv    part    dwg    db    3g2    kml    mdf    bak    sav    r00    tar    jar    lzh    temp    daa    iso    cue    uif    r01    r02    r03    r04    r05    r06    r07    r08    r09    ifo    lha    7z    gz  

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