: This confirms the file is part of a "split volume." You need Part 01 through at least Part 04 (and likely more) to extract anything.
: All parts (except the very last one) should usually be the exact same size. If one is smaller, the download might be corrupted. S2ckb0yDODI2GB.part04.rar
Knowing the source would help me identify exactly what the archive contains. : This confirms the file is part of a "split volume