Boardview for MSI PCB V328 with revision code 31, probably revision 3.1, stored as a .cad file. MSI numbers its graphics card boards in the MS-V series. This file is about 3.3 MB and opens in OpenBoardView, FlexBV or a comparable viewer, where you can highlight a net to see every connected part, mirror the bottom side and find test pads for voltage checks. Early and late V328 revisions are separate files, so match the revision printed on the board before trusting placement.
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 @laptexdna. 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.