Archive of 31.2 MB tied to board number 15296-1, a pattern used by Wistron, the ODM behind many Dell, Acer and Lenovo laptops. BVD in the name most likely refers to boardview material, though no laptop model is stated. Boardview files show part placement and nets for locating test points, measuring rails and finding shorts, and open in tools such as FlexBV or OpenBoardView. Match the 15296-1 number and its revision on the PCB before relying on the layout.
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 @schematicslaptop. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
7-ZipWinRARThe Unarchiver (macOS)