: You cannot open "part8" on its own. To successfully extract the contents, you must have all other parts (part1, part2, etc.) in the same folder.
Because this is part of a multi-volume RAR set (indicated by .part8.rar ), here is the essential information regarding this type of file: 4feaa398f787436fb9aaa5c05f6b4fbd.part8.rar
If you are looking for a description of what is actually inside the file, that information is not public based on the filename alone. You would need to check the specific website or source where you found the link. : You cannot open "part8" on its own
The string appears to be a unique identifier, likely a hash value (like MD5 or SHA) or a random UUID, used to name a specific split archive file. 4feaa398f787436fb9aaa5c05f6b4fbd.part8.rar