Unpacking a package file
Package files are generally distributed in one of three formats that are supported by Joomla! These can be distinguished by the file extension used and are briefly described below.
Package file types
These files are packed using the proprietary ZIP file format. This is the most widely used compression format on Microsoft Windows systems, but it can also be used on Unix-style systems. For more information see ZIP (file format) on Wikipedia
These files are packed using the TAR (for "tape archive") format, then compressed using the open source Gnu Zip file format. This is the primary compression method used on Unix-style systems, but is also supported on other platforms. For more information see gzip on Wikipedia
These files are packed using the TAR (for "tape archive") format, then compressed using the open source bzip2 file format. This is an increasingly popular compression method on Unix-style systems, but is also supported on other platforms. For more information see bzip2 on Wikipedia
Programs available to unpack a package file
How you go about unpacking a package file depends largely on what platform you are running on. Listed below are some of the major platforms and some suggested programs that you can use to unpack package files. See also Comparison of file archivers on Wikipedia.
Unix-style systems (such as Linux)
- The command line unzip program can be used to unpack .zip files. Enter man unzip at the command prompt for details. The man page can also be read online here.
- The command line gunzip program can be used to unpack .tar.gz and .tar.bz2 files. Enter man gunzip at the command prompt for details. The man page can also be read online here.
- The Gnome File Roller application can be used to unpack all three package file formats. See File Roller on Wikipedia.
- The KDE Ark application acts as a front-end for various command line programs including unzip and gunzip. See Ark on Wikipedia.
XP users can right-click the downloaded zip package and select 'Extract all' from the menu. This opens the 'Extraction Wizard' which, by default, creates a new folder for the extracted data when the user continually clicks the 'Next' button followed by 'Finish'.
For more control over the zip process, XP users can download and install 7zip 7zip, a widely-used open source compression utility.
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Apple Mac OS X
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