The file is a compressed archive containing a portion of the installation files for Euro Truck Simulator 2 (ETS2) , specifically version 1.46.2.2s . File Overview
Official game updates from SCS Software are typically delivered via Steam or a single .zip installer. Multi-part .rar files are frequently associated with community-shared "repacks" or third-party mod distributions. Version 1.46 Features & Updates
A new in-game tool that allows drivers to search for specific cargo, companies, or trailer types across the map.
This is a .rar file, a common archival format used to compress large data sets.