One of the most useful features of RAR is its ability to split a single large archive into several smaller "volumes" (e.g., .part1.rar , .part2.rar ). This is particularly common on platforms like Usenet to facilitate easier distribution [22].
While creating RAR files usually requires a commercial license for WinRAR, there are many free tools available for extracting them across all major platforms, including Android, macOS, and Linux [19, 27].
RAR uses sophisticated compression algorithms, including Lempel-Ziv (LZ) and Prediction by Partial Matching (PPM), to reduce file sizes significantly [8]. This makes it an essential tool for transferring large amounts of data over the internet or saving storage space. 2. Key Features and Versions
Understanding the RAR File Format: Efficiency in Compression
The format (short for R oshal AR chive) is a proprietary archive file format developed by Eugene Roshal in 1993 [19]. It has since become one of the most widely used methods for compressing and bundling files, often favored over the standard ZIP format for its advanced features and superior compression ratios. 1. How RAR Works
