A boardview (component placement) file. Shared as “nails.asc” — a .asc file, 77.7 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 .asc file
A set of plain-text tables (format.asc, parts.asc, pins.asc, nails.asc) exported by ASUS test tooling.
OpenBoardViewFlexBV