A RAR file can be configured as a Self-Extracting (SFX) archive, making it an .exe file that can extract without specific RAR software.
Once I have that info, I can help you understand the file better. Need to open, create, or convert a RAR file? - WinZip Odfasrfesd rar
Files can be added to an archive using the WinRAR right-click menu and choosing "Add to archive". A RAR file can be configured as a