Use a tool like WinRAR or 7-Zip to extract the .rar contents.
Because this is community-made content, it is hosted on various simulation fan sites and forums: Download File Linea_9_Metro_Madrid_OR_(v1.1).rar
This package typically includes the route geometry, track layout, signaling, and station objects for Madrid Metro's Line 9 (Paco de Lucía – Arganda del Rey) [1, 3]. Use a tool like WinRAR or 7-Zip to extract the