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Topic: ZIP (file format)


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In the News (Mon 30 Nov 09)

  
  File format - Wikipedia, the free encyclopedia
Other file formats, however, are designed for storage of several different types of data: the GIF format supports storage of both still images and simple animations, and the QuickTime format can act as a container for many different types of multimedia.
Many file formats, including some of the most well-known file formats, have a published specification document (often with a reference implementation) that describes exactly how the data is to be encoded, and which can be used to determine whether or not a particular program treats a particular file format correctly.
Since files are seen by programs as streams of data, a method is required to determine the format of a particular file within the filesystem—an example of metadata.
en.wikipedia.org /wiki/File_format   (1820 words)

  
 ZIP (file format) - Wikipedia, the free encyclopedia
The ZIP file format is a popular data compression and archival format.
ZIP files generally use the file extensions ".zip" or ".ZIP" and the MIME media type
Typically, in any modern file manager, a ZIP file may be treated as a directory or folder, so that files are copied into and out of it in the same manner as any other folder; the compression is handled in a way that is largely transparent to the end user.
en.wikipedia.org /wiki/ZIP_file_format   (1294 words)

  
 BackPack Professional - Glossary - Zip file format   (Site not responding. Last check: 2007-10-07)
Like other archives, ZIP files are data containers, they store one or several files in the compressed form.
A ZIP file is a "compressed" format file.
When the original files are needed, the user can "extract" the original files from the ZIP file using a ZIP file program.
homepages.ihug.co.nz /~elmbrook/zip.htm   (175 words)

  
 Zip file   (Site not responding. Last check: 2007-10-07)
Files with a zip file.zip extension are compressed files.
Files that have been compressed with the ZIP format are called ZIP files and usually end with a.ZIP extension.
A ZIP file is a compressed format file zip file.
www.interiordecoratinglist.net /zip+file.html   (406 words)

  
 [No title]   (Site not responding. Last check: 2007-10-07)
The format of this data record is identical to the Decryption header record preceding compressed file data.
File splitting is a newer derivative of spanning.
Split ZIP files are typically written to the same location and are subject to name collisions if the spanned name format is used since each segment will reside on the same drive.
www.pkware.com /business_and_developers/developer/popups/appnote.txt   (7805 words)

  
 [No title]
JAR file is a file format based on the popular ZIP file format and is used for aggregating many files into one.
A signed JAR file is exactly the same as the original JAR file, except that its manifest is updated and two additional files are added to the META-INF directory, a signature file and a signature block file.
To validate a file, a digest value in the signature file is compared against a digest calculated against the corresponding entry in the manifest file.
java.sun.com /j2se/1.3/docs/guide/jar/jar.html#ManifestSpecification   (3781 words)

  
 ZIP archive file format
The format was contributed to the Public Domain by Phil Katz.
Unfortunately, undocumented compression and encryption methods have been added by the two most popular ZIP archiver implementations, Winzip and PKZip, making the format incompatible when those methods are used (thus making the format less useful because it is no longer certain that any zip application can read any zip file).
PKWare - inventors of the ZIP file format.
schmidt.devlib.org /file-formats/zip-archive-file-format.html   (524 words)

  
 Thinking XML: The open office file format
Discussion of precursors to XML file formats usually include comma-delimited file formats, which are very often used for import and export of spreadsheets and databases.
Unfortunately, this file is a bit too cluttered with elements for casual viewing in a text editor, but you can extract the character data using many common XML tools, including XSLT, courtesy of the null style sheet (see Listing 2).
Information on how OpenOffice uses XML, including the file formats, can be found at the XML project page which links to details and DTDs of the file formats, a discussion of the choices behind the package formats, and more.
www-106.ibm.com /developerworks/xml/library/x-think15   (2157 words)

  
 ZIP File Format - File Extensions
The.ZIP extension signifies the file is a ZIP archive.
ZIP files are used often in DOS/Windows environments.
After the ZIP file is transferred, the recipient takes the ZIP file and "unzips" it, causing the original files to appear on their hard drive.
malektips.com /file_extensions_0006.html   (327 words)

  
 xml:
Those formats are not used because they do not have a suitable level of presentation for office documents.
When we found an established format (like the ones mentioned above) contains concepts that are used in OpenOffice.org as well, then we generally adopted their representation for those concepts in our XML format.
While the above formats easily accomodate the text field output (after all, it's just a string of text), they can only be represented by some sort of extension to the basic format.
xml.openoffice.org /faq.html#6   (1091 words)

  
 Specification of the ZIP File Format   (Site not responding. Last check: 2007-10-07)
The Specification of the ZIP file format is available to the public at the internet.
As far as we know there is no limitation in using ZIP due to patent restrictions.
The ZIP format is specified in the "Application Notes" of PKWARE, Inc. While creating this article the current version of ZIP is:
www.binaryessence.com /dct/en000218.htm   (111 words)

  
 Cover Pages: OpenOffice.org XML File Format
The XML File Format Specification document defines the XML file format used OpenOffice.org and serves as reference for the format.
The XML File Format DTD (document type definition) provides a handy reference against which all OpenOffice.org XML files can be validated." As described in the FAQ document, all OpenOffice.org applications use XML-based file formats.
XML is the new native file format for the StarOffice suite, replacing the old binary file format.
xml.coverpages.org /starOfficeXML.html   (10634 words)

  
 Zip File Format Definition. Define Zip File Format. What is Zip File Format?
ZIP is a file format where the files are compressed (referred to as "zipped).
Using a file compression program (such as PKZip for DOS, or Winzip for Windows), a zip file could be created from one or more original files.
When downloading a zipped file (with the extension.zip), you can unzip it using a program.
www.definethat.com /define/3.htm   (85 words)

  
 What is a ZIP file   (Site not responding. Last check: 2007-10-07)
Another way is to click on the ZIP file in Explorer using the right mouse button.
ZIP file format was developed a long time ago and perhaps it is still the most known archive type, so a large part of Internet archives are ZIP files.
But many important RAR format features (recovery records, Unicode names, strong AES encryption, etc.) are missing in ZIP.
www.rarlab.com /zip_file.htm   (203 words)

  
 FileFormat.Info · The Digital Rosetta Stone
DiskType is a utility that detects the content format of a disk or disk image.
In honor of the 18th birthday of the ZIP file format, Dr Dobbs Journal has podcast with with some people from PkWare.
The Unipage site has some sample files, but they are all zipped, so you cannot see how (if) they are displayed by the browser.
www.fileformat.info   (387 words)

  
 DataCompression.info - Zip   (Site not responding. Last check: 2007-10-07)
Zip Assistant is a vanilla Win32 archive program, which appears to be slanted towards the novice user who might need a bit of handholding.
Zip is a free.NET Zip File library which works with C# or other languages that use the CLR.
ZIPMIX will take the best files from each one and create a new output file, which is guaranteed to be equal to or smaller in size to both of the input files.
datacompression.info /Zip.shtml   (8341 words)

  
 File format   (Site not responding. Last check: 2007-10-07)
Note that using file formats without a publicly available specification can be costly.
The most useful part of intellectual property law for protecting ownership of a file format appears to be patent law.
One popular method in use by several operating systems, including CP/M, DOS, and Windows, is to determine the format of a file based on the section of its name following the final period.
www.mrsci.com /Computer-File-Formats/File_format.php   (2101 words)

  
 Techzonez - .Zip File Format Splinters
If you're using the latest version of either the PKZip or the WinZip file compression utility to create.zip files, beware: The files you make may not be accessible to other.zip software.
The incompatibility is creating confusion over a format that has known remarkable stability for years.
The problem will surface only with encrypted files, but they will still bear the.zip extension, which may confuse people who can't open such files with their.zip utility.
www.techzonez.com /comments.php?shownews=4214   (295 words)

  
 7-Zip
FILE SETS: Mozilla Firefox 1.0.7 for Windows and Google Earth 3.0.0616 for Windows after full installation.
Usually 7-Zip compresses to 7z format 30-70% better than to zip format.
And 7-Zip compresses to zip format 2-10% better than most of other zip compatible programs.
www.7-zip.org   (215 words)

  
 Packaging Programs in JAR Files
Decreased download time: If your applet is bundled in a JAR file, the applet's class files and associated resources can be downloaded to a browser in a single HTTP transaction without the need for opening a new connection for each file.
Sealing a package within a JAR file means that all classes defined in that package must be found in the same JAR file.
The JAR file format is an important part of the Java platform's extension mechanism.
java.sun.com /docs/books/tutorial/deployment/jar   (399 words)

  
 The Mod Archive - Main   (Site not responding. Last check: 2007-10-07)
- NEW: Zip archived, even though the files within the zip are zip files, the way it's archived is more flexible for those that didn't know how to handle tar archives (it was handier at the time for the testing to use tar instead of zip).
The most important news is that the updates will no longer be tar files, after a few suggestions I took it onboard and have made it so that the files are now archives in a.zip, although they will still also be individually zipped inside.
Each directory is represented by an individual torrent file, so you can have the option of choosing which ones you want to download first.
www.modarchive.com   (1960 words)

  
 Common Internet File Formats
GIF (Graphical Interchange Format), though not the most economical, is the most common graphics format found on the Internet.
Using.uu as the extension is not required but is considered politely explanatory for what type of file it is. Increasing numbers of desktop mail and newsreading programs will handle this type of encoding on the fly.
Some primitive file editing can be done such as cropping and re-sizing (scale-by-percent) and adjusting file resolution and dither pattern.
www.matisse.net /files/formats.html   (1128 words)

  
 Zip File Format
Local File Header 1 file 1 extra field file 1 comment file data 1 Local File Header 2 file 2 extra field file 2 comment file data 2.
26 ZIPEXT HEX 00000000 ;External file attributes, host ;system dependent 2A ZIPOFST HEX 00000000 ;Relative offset of local header ;from the start of the first disk ;on which this file appears 2E ZIPCFN DS ZIPCFNL ;Filename or path - should not ;contain a drive or device letter, ;or a leading slash.
3-4 unused 5-7 used internaly by ZIP Note: Bits 1 and 2 are undefined if the compression method is other than type 6 (Imploding).
www.sxlist.com /techref/language/delphi/swag/ARCHIVES0022.html   (162 words)

  
 ZIP File Format - Malektips [ZIP FILE FORMAT FILE EXTENSIONS]
This tip was printed from the website http://malektips.com, bringing you some of the best computer help and tips.
These tools take a group of files and mash them ("zip" them) together into one "archive" file, sometimes reducing the amount of space the ZIP file takes on the hard drive ("compressing").
This way (theoretically) only the recipient, knowing the password, can unzip the file.
malektips.com /file_extensions_0006p.html   (306 words)

  
 PKWARE - Application Note - .ZIP File Format Specification   (Site not responding. Last check: 2007-10-07)
PKWARE's Application Note on the.ZIP file format provides developers a general description and technical details of the.ZIP specification.
This specification is periodically revised according to the publication policy statement as new features are added to ensure the continued interoperability of.ZIP applications.
Please use our AppNote Subscription Service to keep up with the developing standard, and see our Publication Policy for additional information.
www.pkware.com /business_and_developers/developer/appnote   (118 words)

  
 Re: Publish In ZIP File Format   (Site not responding. Last check: 2007-10-07)
Jack, The CD-rom is a step in the right direction.
However, I continue to hope for a simple ZIP file that covers each issue.
Then, off-line, I can easily look at each article without individual downloads of each one.
www.antennex.com /storage/nonantenna/_nonantenna/00000010.htm   (39 words)

  
 WinZip® - The Zip File Utility for Windows - Zip/Unzip, Encrypt/Decrypt
Basic Information: Learn the basics of Zip files and how to use them...
Discover how to work with WinZip directly from Windows Explorer, split large Zip files, utilize the e-mail features of WinZip, protect your sensitive data with encryption...
Multi-User Information: Read about multi-user licensing, pricing, and ordering information as well as how to install WinZip in a networked environment...
www.winzip.com   (134 words)

  
 Paradox Specifications
File Format, Paradox Repair and Recovery, and Decryption
file, which goes into more detail on certain elements of the file format.
If you have any additional data, please let me know via email.
www.byronref.com /rmb/pxspecs.htm   (106 words)

  
 WinRAR archiver, a powerful tool to process RAR and ZIP files
WinRAR archiver, a powerful tool to process RAR and ZIP files
It can backup your data and reduce size of email attachments, decompress RAR, ZIP and other files downloaded from Internet and create new archives in RAR and ZIP file format.
You may try WinRAR before buy, its trial version is available in downloads.
www.rarsoft.com   (306 words)

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