A boardview (component placement) file for HP hardware (board LA-E791P, LA-E801P). Shared as “HP_250_G6_LA_E791P_LA_E801P_CSL50_CSL52_BOARDVIEW_BDV_CAD.cad” — a .cad file, 2.13 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.