Depending on your goal for this file, here are a few ways to describe or handle it:
Right-click on part01 only and select "Extract Here" using software like WinRAR or 7-Zip . Gioneotwo.part01.rar
You cannot view the full contents using just part01 . If any piece is missing, the extraction will fail with a "checksum error" or "missing volume" message. Safety Warning Depending on your goal for this file, here