Z is a compressed file format used for reducing the size of large files. It is commonly used in Unix-based operating systems for compressing data and software packages. Z files can be opened and extracted using the compress utility or other compatible software, providing an efficient way to handle large files.
7Z is a compressed file format used by the 7-Zip software. It provides high compression ratios, making it ideal for compressing large files and directories. 7Z files are compatible with several file archivers, including the free 7-Zip utility, which can compress and extract files from 7Z archives.