A boardview (component placement) file for MSI hardware (board MS-16W21). Shared as “MSI MS-16W21 REV1.0 BOARDVIEW(BDV)(.CAD).cad” — a .cad file, 1.06 MB.
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 .cad file
GenCAD text export, the usual format for Compal, Quanta, Wistron and Dell / HP / Lenovo laptop boards.