An archive of repair files (board DAG3PBMB8A0). Shared as “vbios Quanta G3PB DAG3PBMB8A0 GN21-X4-A1_.7z” — a .7z file, 362 KB.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @boardsscanrepo. Enginerys does not host this file.
How to open a .7z file
High-ratio compressed archive, often used for large BIOS collections.