Do you have all the other downloaded in the same folder?
: You cannot open this file alone. You must have all other parts (e.g., part1.rar , part2.rar ) in the same folder to extract the full video. Gu3rr4Futr0.m1080p.yamil.part3.rar
: Ensure the file size matches the other parts (except usually the last one) to confirm the download wasn't corrupted. Do you have all the other downloaded in the same folder