A file ending in .part1.rar is not a standalone archive; it is the first segment of a single larger archive that has been split for easier sharing. To "produce the long piece" (the full video file), follow these steps: 1. Gather All Parts

To extract a multi-part file like , you need to ensure all sequence parts (part2, part3, etc.) are in the same folder before starting. How to Extract Multi-Part RAR Files

: A free, open-source tool highly recommended for Windows users.

Do you have of the file downloaded, or are you missing some segments?