Right-click on Part 1 and select "Extract Here" using WinRAR or 7-Zip . The software will automatically pull data from part2.rar and subsequent volumes.
Ensure you have all parts (part1, part2, etc.) in the same folder. American.Truck.Simulator.v1.46.2.11s.part2.rar
If you encounter a "Checksum Error" during extraction, part2.rar may be corrupted. Try redownloading this specific part. Right-click on Part 1 and select "Extract Here"
In the context of file sharing or technical support, a "complete text" for this subject often refers to a description or a .nfo (information) file layout. Here is a standard template for such a file: American.Truck.Simulator.v1.46.2.11s.part2.rar