shar & sha

Filename extensions: shar & sha

(related variations: shar sha)
Groups of files are often sharred together so that they may be handled as a single file. A file that ends with this extension is probably such a file and will have to be unsharred into its individual components before use. The whole concept of sharring started on UNIX machines, but it is also possible to get programs to shar and unshar on most other computers.