Found 1 record for the .7Z file extension name
.rar - WinRAR compressed archive
.cbr - Comic Book Archive file or ComicBook Reader File
.002 - Compressed file from a multi-volume archive
.isz - Compressed disk image file format
.z01 - WinZip split compressed archive
.deb - Debian Linux package file
.bar - Age of Mythology game file
file extension 7Z - 7z compressed archive file
File extension 7Z description:
7z is the new backup, archive - compressed file format, providing high compression ratio.
The main features of 7z format:
- Open architecture
- High compression ratio
- Strong AES-256 encryption
- Ability of using any compression, conversion or encryption method
- Support for very large files with sizes up to 16000000000 GB
- Unicode file name support
- Solid compression ratio
- Archive headers compression
7z has an open architecture, so it can support any new compression method, too. The following methods currently are integrated into 7z:
| LZMA | Improved and optimized version of LZ77 algorithm |
| PPMD | Dmitry Shkarin's PPMdH with small changes |
| BCJ | Converter for 32-bit x86 executables |
| BCJ2 | Converter for 32-bit x86 executables |
| BZip2 | Standard BWT algorithm |
| Deflate | Standard LZ77-based algorithm |
LZMA is the default and general compression method of 7z format. The main features of LZMA are:
- High compression ratio
- Variable dictionary size (up to 4 GB)
- Compression speed: about 1 MB/s on 2 GHz CPU
- Decompression speed: about 10-20 MB/s on 2 GHz CPU
- Small memory requirement for decompression (depend from dictionary size)
- Small code size for decompression: about 5 KB
- Supports multi-threading and P4's hyper-threading
The LZMA compression algorithm is very suitable for embedded applications. LZMA is released under the terms of the GNU LGPL.
7-Zip supports encryption with the AES-256 algorithm. This algorithm uses a cipher key with a length of 256 bits. To create that key, 7-Zip runs a derivation function based on a SHA-256 hash algorithm. A key derivation function produces a derived key from the text password entered by the user. To increase the cost of an exhaustive search to crack a password, 7-Zip uses a large number of iterations when it produces a cipher key from a password.
7z is part of the 7-Zip program distributed under the GNU LGPL.
Associated applications to file extension 7Z:
Company / developer:
Dag Ågren/WAHa.06x36
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
Company / developer: ConeXware, Inc.
PowerArchiver
PowerArchiver is a backup utility with hundreds of features, yet remains easy to use, small and fast. Novice users will find a familiar interface complete with tutorial and detailed help, while more experienced users can take advantage of full Explorer integration, multiple encryption methods and advanced compression algorithms.
PowerArchiver includes full support for Microsoft's newest operating system, Windows Vista. User Account Control and new Vista dialog windows such as New, Open and Save are supported. You do not need to worry about compatibility problems with PowerArchiver if you are using or considering upgrading to Vista.
New, Modern User Interface
A completely revamped user interface in PowerArchiver makes it easier to access the wealth of features that PowerArchiver has. This task-based interface utilizes the same "Ribbon" design found in Microsoft Office 2007, and ensures you qick access to the most used features while not hidding others under layers of menus.
For those that desire the older look, PowerArchiver's Classic interface is still available.
Superior ZIP Support
PowerArchiver offers superior ZIP format support compared to other archivers. Here are the highlights:
- Support for unlimited file size and unlimited number of files in ZIP archives
- Support for advanced Deflate64 method providing higher compression ratios
- ZIP AES support (both PkZip 5.1 and WZ 9.0 standards supported)
- Fast and strong compression and decompression
- Multiple disk spanning, with support for unlimited span sizes
7-Zip Compression
7-Zip is an advanced compression format featured in PowerArchiver. It is an open source format, providing an open architecture and high compression ratio. 7-Zip outperforms ZIP, ACE and even RAR in many tests. However, 7-Zip's greatest strength is that it is not controlled by any organization or individual, but by an open source LGPL project to which anyone can contribute. More information on 7-Zip and its superior compression can be found at 7-Zip.org.
PowerArchiver introduces a new Transparent Update feature for 7-Zip archives, which allows you to quickly add or remove files even if the archive is "Solid."
Multiple Formats Support Including ISO
PowerArchiver has native support for most popular compressed and encoded formats currently in use. All formats are fully integrated into PowerArchiver, so you can utilize all PowerArchiver tools with each of them.
- Read and write support for ZIP, 7-ZIP, CAB, LHA (LZH), TAR, GZIP, BZIP2, BH, XXE, UUE, yENC, and MIME (Base 64)
- Read and extract support for: RAR, ARJ, ARC, ACE, ZOO plus ISO, BIN, IMG and NRG disc image formats
- Brand new Plug-in System enables new formats and file types to be supported with a small download.
Company / developer: Igor Pavlov
The main features of 7-Zip
- 7-Zip is open source software. Most of the source code is under the GNU LGPL license. You can use 7-Zip on any computer, including a computer in a commercial organization. You don't need to register or pay for 7-Zip. But you can make a donation to support further development of 7-Zip.
- High compression ratio in new 7z format with LZMA compression
- Supported formats:
- Packing / unpacking: 7z, ZIP, GZIP, BZIP2 and TAR
- Unpacking only: RAR, CAB, ISO, ARJ, LZH, CHM, Z, CPIO, RPM, DEB and NSIS
- For ZIP and GZIP formats, 7-Zip provides a compression ratio that is 2-10 % better than the ratio provided by PKZip and WinZip
- Self-extracting capability for 7z format
- Integration with Windows Shell
- Powerful File Manager
- Powerful command line version
- Plugin for FAR Manager
- Localizations for more than 60 languages
Company / developer: ESTsoft Corp.
FREE for home users, ALZip is the easiest to use, most powerful, and by far the cutest compression utility available.
** NEW ** Cuter than ever, new Windows Vista style icons in ALZip make zipping more fun than ever before!
Try ALZip and see for yourself:
- No Time Limits
- 100% Fully Functional
- 36 archive and compression file formats (More than 36 file extensions)
- Open CD burning file formats: ISO and BIN
- Open virtual CD files: LCD
- Password retrieval
- Create SFX (EXE) files for FREE
- Create spanned archives over 2600 volumes
- Unlimited archive size with ALZ
Company / developer: RarLab
WinRAR benefits:
Using WinRAR puts you ahead of the crowd when it comes to compression by consistently making smaller archives than the competition, saving disk space and transmission costs.
WinRAR provides complete support for RAR files and ZIP archives and is able to unpack CAB, ARJ, LZH, TAR, GZ, ACE, UUE, BZ2, JAR, ISO, 7Z, Z archives.
WinRAR offers a graphic interactive interface utilizing mouse and menus as well as the command line interface.
When you purchase WinRAR license you are buying a license to the complete technology, no need to purchase add-ons to create self-extracting files, it's all included. One price, one payment, once.
You also receive the benefit of a life-time use of the WinRAR archiver. No upgrade fee to pay. When a new release is made, simply download and install, your license is valid for life.
WinRAR is easier to use than many other archivers with the inclusion of a special "Wizard" mode which allows instant access to the basic archiving functions through a simple question and answer procedure. This avoids confusion in the early stages of use.
WinRAR offers you the benefit of industry strength archive encryption using AES (Advanced Encryption Standard) with a key of 128 bits.
WinRAR supports files and archives up to 8,589 billion gigabytes in size. The number of archived files is, for all practical purposes, unlimited.
WinRAR offers the ability to create selfextracting and multivolume archives.
Recovery record and recovery volumes allow to reconstruct even physically damaged archives.
WinRAR features are constantly being developed to keep WinRAR ahead of the pack.