These files, known as '7z' or '7-Zip files,' are archives of one or more files in one single compressed package.Both a folder and a 7Z file can store one or more files, and even other folders. It's a bit like a folder on your computer, except that it really acts like a file. A file with the 7Z file extension is a 7-Zip Compressed file. 7Z File (What It Is and How to Open One) - Lifewire.
It relies on Burrows–Wheeler transform or algorithm to convert all character sequences recurring frequently into identical letters strings. Supported formats: Packing / unpacking: 7z, ZIP, GZIP, BZIP2 and TAR Unpacking only: ARJ, CAB, CHM, CPIO, DEB, DMG, HFS, ISO, LZH, LZMA, MSI. The main features of 7-Zip: High compression ratio in new 7z format with LZMA compression. The Wii game ISO file comes from the Wii physics game disc, it always has the 4.37G capacity, this format can not be opened directly on the computer, you must burn it to disc, then you can play these games on your Wii machine.
