What is the suffix of decompression package? (Decompressed suffix)

The suffixes of 1. decompression package are RAR, ZIP, ARJ, z, etc. RAR is a proprietary compression format for file compression and archiving, and its full name is RoshalARchive.

2.zip: It is a file compression algorithm, formerly known as Deflate, and its MIME format is application or ZIP.

3.ARJ: It is a file format compressed by compression software ARJ under the disk operating system, and its full name is archive.

4.z: It is a file compression program of GNU free software, and its full name is GNUzip.