A boardview (component placement) file (board DA0U87MB6C2). Shared as “U87 U88 DA0U87MB6C2 UMA Rev 1A.bdv” — a .bdv file, 718 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 @ShareMan_Electronic_Files. Enginerys does not host this file.
How to open a .bdv file
Text-based boardview produced by Honhan / Hon Hai test tooling, with lightly obfuscated content.
OpenBoardViewFlexBVBoardViewer