While "routine 11 - Copy.rar" appears to be a specific user-created file name rather than a standard software component, the most critical "solid" feature of the format itself is Solid Compression . Core Feature: Solid Compression
: Large collections of similar files (e.g., multiple versions of a document or software routines). routine 11 - Copy.rar
If you are using , you have a built-in "solid" feature for handling this file: While "routine 11 - Copy