file extension TBZ

The Unarchiver

The Unarchiver is a much more capable replacement for "BOMArchiveHelper.app", the built-in archive unpacker program in Mac OS X. The Unarchiver is designed to handle many more formats than BOMArchiveHelper, and to better fit in with the design of the Finder. It can also handle filenames in foreign character sets, created with non-English versions of other operating systems. I personally find it useful for opening Japanese archives, but it should handle many other languages just as well.

It is very simple to use and install - simply copy it into your Applications folder or whereever you prefer, and then set archive filetypes to open using it. This can either be done the usual way, or by double-clicking the icon to show The Unarchiver's preferences.

Supported file formats include Zip, Tar-GZip, Tar-BZip2, Rar, 7-zip, LhA, StuffIt and many other more or less obscure formats

IZArc

IZArc is the ultimate freeware archive utility supporting many archive formats.
IZArc provides support for most compressed and encoded files, as well as access to many powerful features and tools. It allows you to drag and drop files from and to Windows Explorer, create and extract archives directly in Windows Explorer, create multiple archives spanning disks, creating self-extracting archives, repair damaged zip archives, converting from one archive type to another, view and write comments and many more.
IZArc has also build-in multilanguage support.

Key features:

• Create an archive
• Add files to an existing archive
• Delete files from an existing archive
• Extract files from an existing archive
• Test an archive file
• Convert archive
• Convert CD Images
• Repair broken archive
• Searching for any files in many archives
• Favorite Folders
• Obtaining a detailed list of files and information like compression rate, path, or size from an archive file
• Supports both long and short 8.3 filenames
• Disk spanning from and to multiple diskettes or other removable media
• Implementing the possibility to sort the list items by name size, date and etc.
• Full Drag and Drop support
• CD/DVD Images support (ISO, BIN, MDF, NRG, IMG, C2D, PDI, CDI)
• Integrating in Windows Explorer context menu
• Automatic installation of most software distributed in archive files
• Add/View comments in an archive
• By double-clicking onto a file in the file list, it's opened with the program associated to this file type
• CheckOut feature
• Create a self-extracting archive
• E-mail an archive
• Checking for new updates
• Build-in multilanguage support
• Virus Scan feature
• UU/XX/MIME Encode/Decode
• Create Multi-Volume Set
• Merge Multi-Volume Set
• UnSFX (Convert self-extracting (SFX) .EXE files to standard archives)
• Encrypt files using Rijandael - AES (256-bits) encryption
• Zip encryption (WinZip 9 compatible)
• BZip compression for ZIP archives
• Decrypt (.ize) files

FREE expansion and decoding!
Easily expand and decode files you download from the Web or receive in your email. Quickly access StuffIt files, zip files created by WinZip® and other zip utilities, and decompress tar, gzip and bzip files.

bzip2 is a freely available, patent free, high-quality data compressor.
It is a great algorithm for compressing data. bzip2 generally makes files that are 60-70% smaller than their gzip'd counterparts.

TAR

The Tar program provides the ability to create tar archives, as well as various other kinds of manipulation. For example, you can use Tar on previously created archives to extract files, to store additional files, or to update or list files which were already stored.

Initially, tar archives were used to store files conveniently on magnetic tape. The name "Tar" comes from this use; it stands for tape archiver. Despite the utility's name, Tar can direct its output to available devices, files, or other programs (using pipes), it can even access remote devices or files (as archives).