When large files are uploaded to the internet, they are often split into smaller "parts" (e.g., .part01.rar , .part02.rar ) to make them easier to upload and download.
It closely resembles a fragmented or corrupted filename, possibly from a split-RAR archive (e.g., part of a multi-volume .rar set). Such filenames are often automatically generated and may appear in: ebwh078upart08rar