: You need A2x265.mp4.7z.001 , A2x265.mp4.7z.002 , and any subsequent parts (003, 004, etc.) in the same folder.

This specific naming structure is common in community-driven file sharing and archival circles for several reasons:

: 7-Zip archives can include "checksums." If part .002 gets corrupted during a download, you only have to re-download that specific 700MB or 1GB chunk rather than the entire 10GB video.