: This is the file extension for the RAR (Roshal Archive) format, known for its high compression ratio and ability to span multiple volumes. Why Files are Split into Parts

: This indicates that the file is the first volume in a series. For the data inside to be accessible, you typically need all subsequent parts (e.g., part02, part03) present in the same folder.

To access the contents of this file, you cannot simply open the first part in isolation. The extraction process follows these rules: