If the file ends in .part1.rar , you definitely need the remaining parts (part2, part3, etc.) for it to extract correctly.
Always ensure you are downloading from reputable sources to avoid malware, and remember that using NSPs usually requires a modded Nintendo Switch console. Cuphead (NSP)(The Delicious Last Course DLC).rar
If the uploader has split the file to meet hosting limits (e.g., 500MB or 1GB limits), the files will be named: Cuphead (NSP)(The Delicious Last Course DLC).part1.rar Cuphead (NSP)(The Delicious Last Course DLC).part2.rar ...and so on. How to Verify You Have Everything If the file ends in
The "piece" or "part" count for a file named depends entirely on the specific source or uploader you are using, as different websites split large files into different sizes. How to Verify You Have Everything The "piece"
If you try to extract the file using WinRAR or 7-Zip and receive a "Checksum error" or "Unexpected end of archive" message, it is a definitive sign that a piece is missing or the download was interrupted.
Many sources provide this as a single .rar archive. If you only see one link, you likely only need that one file.