: The .part08.rar extension indicates this is the 8th piece of a larger set. To access the actual content, you generally need all parts (part01, part02, etc.) in the same folder.
Based on the file naming convention, is a specific segment of a multi-part compressed archive. What This File Likely Represents UNDODI2GB.part08.rar
: If part08.rar is missing or corrupted, the entire archive will fail to open. you generally need all parts (part01