Un01.part1.rar

: Use software capable of handling split RAR archives, such as WinRAR, 7-Zip , or The Unarchiver for macOS. Initiate Extraction : Right-click on specifically the .part1.rar file . Select "Extract Here" or "Extract to [Folder Name]" .

Do you have of the archive downloaded in one folder? un01.part1.rar

The software will automatically detect and pull data from the other parts to reconstruct the original file. : Use software capable of handling split RAR

: One of the parts may have been corrupted during download. You may need to re-download that specific part. such as WinRAR