: Indicates that this is the second file in a series. You generally need all parts (e.g., part1, part2, part3) in the same folder to successfully extract the contents. .rar : A compressed archive format developed by WinRAR. How to Use This File
: Be cautious when downloading .rar files from unknown sources, as they can sometimes contain malware according to security experts at Avast . sc23999-BSv11.part2.rar
: Likely stands for "Build Version 11" or a specific software revision. : Indicates that this is the second file in a series