If the extracted content is not the video format you expected (e.g., .mp4 or .mkv) but instead an .exe or .scr file, do not open it.
If one part, such as part 06, is missing or corrupted, the entire archive usually becomes unreadable. Why Files are Split into Parts ipzz274upart06rar
Software such as WinRAR or 7-Zip is required to "stitch" these fragments back into a single playable file. If the extracted content is not the video
If a download fails at 90% on a massive 10GB file, you might have to start over. If that file is split into ten 1GB parts, you only need to restart the specific part that failed. such as part 06