Always initiate the extraction by right-clicking on part01.rar . The software will automatically pull data from part08 during the process.
If you do not recognize the "YO342" project code, check the source or the directory where you found it for a .txt or .nfo file, which usually contains a description of the archive's contents.
Use a modern decompression tool like WinRAR, 7-Zip , or The Unarchiver for macOS. 3. Operational Risks