To open part01.rar , you must have all subsequent parts (e.g., part02.rar , part03.rar ) in the same folder before extracting. Programs like WinRAR or 7-Zip will automatically combine them into a single file once you start the extraction on part one.
Check the specific product page for your SKR board (e.g., Go to product viewer dialog for this item. SKR Mini E3 Go to product viewer dialog for this item.
While direct RAR links from third-party sites can change frequently, the most reliable way to find these specific parts (like part01.rar ) is through the following sources: