RAR is mainly used for data compression, archiving and packaging. Download WinRAR compression software and decompress it to open it. RAR is the native format of WinRAR decompression software. RAR file is a data container, which can store one or more files in compressed form, and its extension is -RAR. Compared with other available compression tools, RAR provides many advanced functions, including multi-volume archiving and strict compression.
RAR is a mainstream compressed file format. You can't open it directly, but you need a decompression tool that supports RAR to open it, and then you can decompress the files inside. There are many tools on the market that can open files in rar format, such as WinRAR, 52 compression, CoolRAR and so on. Both support the decompression and opening of RAR files.
Disadvantages of RAR format file
1, slow compression speed: Compared with other compressed file formats, such as ZIP and TAR, the compression speed of RAR is relatively slow. This is because RAR uses a more complex compression algorithm. Although it can achieve a higher compression ratio, it needs more computing resources and time.
2. Risk of file damage: Due to the complexity of the RAR compression algorithm, if there are any errors or anomalies in the compression process, the RAR file may be damaged. This makes the reliability and stability of RAR file relatively low.
3. Security issues: There are some security issues in the RAR file format, such as password leakage and virus attacks. This is mainly because RAR uses the old encryption algorithm and compression algorithm, which makes it easier to crack RAR passwords and attack RAR files.
The above contents refer to Baidu Encyclopedia -rar format.