Samsung boardview archive labelled only as CAD data, so the name gives no model or motherboard number. The 694 KB RAR likely holds a component placement file for a Samsung laptop or device, of the kind opened in boardview software such as OpenBoardView or FlexBV. Such a file lets a technician locate parts, follow nets between pins and find test points while probing. Open it and read the board identifier inside, then confirm it matches the PCB on your bench.
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 @iranianRefix. 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)