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Archive formats are used for backups, mobility, and archiving. Many archive formats compress the data to consume less storage space and result in quicker transfer times as the same data is represented by fewer bytes. Another benefit is that files are combined into one archive file which has less overhead for managing or transferring.
Because the files in a ZIP archive are compressed individually, it is possible to extract them, or add new ones, without applying compression or decompression to the entire archive. This contrasts with the format of compressed tar files, for which such random-access processing is not easily possible. A directory is placed at the end of a ZIP file.
Rar5 can optionally create a "quick open record", a special archive block at the end of the file that contains the names of files included, allowing archives to be opened faster. Removes specialized compression algorithms for Itanium executables, text, raw audio (WAV), and raw image (BMP) files; consequently some files of these types compress ...
Archive files are particularly useful in that they store file system data and metadata within the contents of a particular file, and thus can be stored on systems or sent over channels that do not support the file system in question, only file contents – examples include sending a directory structure over email, files with names unsupported on the target file system due to length or ...
7-Zip is a free and open-source file archiver, a utility used to place groups of files within compressed containers known as "archives". It is developed by Igor Pavlov and was first released in 1999. [2] 7-Zip has its own archive format called 7z introduced in 2001 [12], but can read and write several others.
Compressed Folders: Microsoft: 1998-06-25 Windows Windows 8.1: 2013-08-27 Active Proprietary Bundled [d] Disk ARchiver: Denis Corbin 2002 Cross-platform 2.7.13 [6] 2023-10-01 Active GPL-2.0-or-later No cost Expander: Haiku: 2002 Haiku R1/beta5 [7] 2024-09-13 Active MIT No cost Filzip: Philipp Engel Unknown Windows 3.06 [8] 2006-07-19 Inactive ...
B – (B file) Similar to .a, but less compressed. BA – BA: Scifer Archive (.ba), Scifer External Archive Type; BIN – compressed archive, can be read and used by CD-ROMs and Java, extractable by 7-zip and WINRAR; BKF – Microsoft backup created by NTBackup.c; BLEND – An external 3D file format used by the animation software, Blender. BZ2 ...
(User and System) Compressed: Read-only attribute for files compressed using HFS+ Compression; In these systems, the chflags and ls commands can be used to change and display file attributes. To change a "user" attribute on a file in 4.4BSD-derived operating systems, the user must be the owner of the file or the superuser; to change a "system ...