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2. ZIP (file format) - Wikipedia

   en.wikipedia.org/wiki/ZIP_(file_format)

   The .ZIP file format was designed by Phil Katz of PKWARE and Gary Conway of Infinity Design Concepts. The format was created after Systems Enhancement Associates (SEA) filed a lawsuit against PKWARE claiming that the latter's archiving products, named PKARC, were derivatives of SEA's ARC archiving system. [3]

3. 50 Incredibly Cool Things That Are Free Online That Everyone ...

   www.aol.com/52-helpful-things-free-everyone...

   7-Zip - file archiver with a high compression ratio ... Ilovepdf and smallpdf. ... It takes less than a minute to merge pdf files, compress them, split them, convert to and fro to different ...

4. List of archive formats - Wikipedia

   en.wikipedia.org/wiki/List_of_archive_formats

   This means that compressed archives with the UC2 file extension can hold almost 1 million files. .uca PerfectCompress [17] Windows: Windows: No Based on PAQ, RZM, CSC, CCM, and 7zip. The format consists of a PAQ, RZM, CSC, or CCM compressed file and a manifest with compression settings stored in a 7z archive. .uha UHarc DOS/Windows: DOS/Windows ...

5. 7-Zip - Wikipedia

   en.wikipedia.org/wiki/7-Zip

   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.

6. ZIP (file format)

   en.wikipedia.org/.../mobile-html/ZIP_(file_format)

   A ZIP file may contain one or more files or directories that may have been compressed. The ZIP file format permits a number of compression algorithms , though DEFLATE is the most common. This format was originally created in 1989 and was first implemented in PKWARE, Inc. 's PKZIP utility, [2] as a replacement for the previous ARC compression ...

7. Data compression - Wikipedia

   en.wikipedia.org/wiki/Data_compression

   When audio files are to be processed, either by further compression or for editing, it is desirable to work from an unchanged original (uncompressed or losslessly compressed). Processing of a lossily compressed file for some purpose usually produces a final result inferior to the creation of the same compressed file from an uncompressed original.

8. List of file formats - Wikipedia

   en.wikipedia.org/wiki/List_of_file_formats

   GZ – gzip Compressed file; HEIC – High-Efficiency Image Codec; less storage space than the equivalent quality JPEG; IPG – Format in which Apple Inc. packages their iPod games. can be extracted through Winrar; JAR – jar ZIP file with manifest for use with Java applications. JPG – Joint Photographic Experts Group – Image File

9. Solid compression - Wikipedia

   en.wikipedia.org/wiki/Solid_compression

   Compressed file formats often feature both compression (storing the data in a small space) and archiving (storing multiple files and metadata in a single file). One can combine these in two natural ways: compress the individual files, and then archive into a single file; archive into a single data block, and then compress.