The name follows a specific naming convention typically associated with (RAR files), where a large file has been broken into multiple smaller parts for easier distribution. In this case, "part3" indicates it is the third segment of a multi-part set. Analysis of the File Name Components
Provide more context about where you encountered this name so I can give you a more detailed report. sc23239-SCRN.part3.rar
: It may be part of an internal update or a specialized driver package for hardware. The name follows a specific naming convention typically