To successfully open these files, you generally need to follow these steps:

: If one specific part is corrupted, you may need to re-download that specific file.

: Ensure all related files (e.g., ex03.part1.rar , ex03.part2.rar , etc.) are located in the same folder .

: Use a tool like WinRAR, 7-Zip , or the unrar CLI to open only the first part ( .part1.rar ).