Compressed Files

These are files in compressed format. Macintosh DiskDoubler is the brains behind DD files and is ideal for Mac OS Classic. DD files are compressed using the LZ78 process. It does so on a hard drive which can later be expanded on-the-fly when one wants to access the files. The compression process is usually done […]

First of all, PIZ is simply ZIP spelled backward. In some instances, they are referred to as renamed ZIP files. Therefore, it is safe to say that zip files are compressed and archives files. They are mainly used for sending emails with zipped attachments. PIZ file extensions prevent email server filters from blocking such emails. […]

They are files related to WinRAR or RAR compression tool. The tool is used to compress R00 files into a single or multiple parts of a split archive. These files are used a lot online and, most notably, on a sharing website. After you have downloaded an R00 file, the rules are that you must […]

An XIP file is more of an old version of ZIP files. They are XAR archives that are compressed using the GNU format. The files contain dates, time as well as certificates for the archives. They hold one or more zipped files with a digital signature. Mostly, you could say that an XIP file is […]

The Z01 extension refers to output from some file compression software, such as WinRAR and WinZip. The format is known as the First Split ZIP File and is the first of several archive files created by these programs. The Z Archive System is a Unix-based tool for compressing, extracting and viewing ZIP files. Users can […]

The Z extension refers to a compressed archive created in the Unix-based devices. It follows a simple compression technique and stores data in binary format. The primary task of it is to store or pack files to save disk space. The GZ extension created by the GNUzip compression technique has made the Z format redundant, […]

Developed by Sony, the PUP extension refers to a PlayStation Update file for the PS3. The format can be a file or a patch that includes periodical security patches, bug fixes, elements to improve software stability, and other OS updates. Users can choose between directly downloading them on to their PS3, or they can download […]

Developed by Allume Systems and owned by Smith Micro, its StuffIt, a file compressing software, uses the SIT (StuffIt Archive) extension. The program is a hub, which incorporates StuffIt Expander, DropStuff, DropZip, and DropTarEven into a single package. Even though it is exclusive to Macs, the organization provides an Expander for the Windows users too. […]

A ZIPX file is a zip archive. One unique feature they hod is that the files have been compressed using an advanced compression method. Additionally, they are developed by the same company which compresses other ordinary ZIP files called CorelWinZip. They contain one or more files that compressed in a typically extended zip format. That […]

Developed by WinAce, the ACE extension refers to a file archive compressed by the WinAce software. It is a proprietary binary file format. The program has an in-house compression algorithm that allows fast compression with a high ratio. The format is no longer in use and hence considered obsolete.