Ar.part01.rar (NEWEST METHOD)

: RAR archives often include a Recovery Record , a feature that allows the software to repair the file if a small amount of data becomes corrupted during download or transfer. Why this is used

This naming convention indicates that a large original file or collection of data has been "split" into smaller, manageable chunks. AR.part01.rar

: Modern extraction tools like WinRAR, 7-Zip , or PeaZip will automatically detect the other parts and recombine them when you begin extracting the first one. : RAR archives often include a Recovery Record