Yo320.part5.rar -

: Opening Part 1 with a tool like WinRAR or 7-Zip will automatically pull data from Part 5 to complete the extraction.

: You must have all other parts (e.g., part1.rar through part4.rar) in the same folder. YO320.part5.rar

Because this is of a RAR archive, you cannot open it individually to extract the files. Multi-part archives (split volumes) work as a single unit. : Opening Part 1 with a tool like

how to find file info in not-first rar file? · Issue #56 · markokr/rarfile YO320.part5.rar