Managing Your Icarus Updates: A Guide to Manual File Installation
: Standard tools like WinRAR or 7-Zip are required to "stitch" these parts back together. ICARUS.v1.2.37.107493.part01.rar
The version string v1.2.37.107493 identifies a specific build of the game. The .part01.rar suffix indicates that the total download has been split into multiple smaller chunks to make downloading more manageable. Step-by-Step Installation Managing Your Icarus Updates: A Guide to Manual