A file named "Desktop.rar" is usually a compressed backup of a user's . It commonly contains: Shortcuts : Links to applications (.lnk files).
If you want to move the files out of the archive and onto your computer: Desktop.rar
: If you don't want to install software, sites like Extract.me allow you to upload the RAR file and view or download its individual contents directly in your browser. Typical Contents A file named "Desktop