Open part1.rar with a program like WinRAR or 7-Zip. It will automatically pull data from part 5 and the others to rebuild the original file.
Ensure you have parts 1, 2, 3, and 4 (and any subsequent parts). sc23563-TC.part5.rar
This often refers to a digital copy of a film made from a motion picture film original. In the context of file sharing, "TC" releases are usually early, high-quality copies of movies. Open part1
This is likely a unique ID or a "scene" tag used by the group that released the file. How to access the content: "TC" releases are usually early
The file is likely part of a multi-volume compressed archive containing a specific software release, game, or high-definition video.