Boardview package for the X200CA motherboard, covering revisions 2.0 and 2.1 as stated in the name, delivered as a 1.17 MB RAR archive. After extraction, the boardview can be opened with tools like OpenBoardView or FlexBV, depending on the inner format. It shows where each part sits, which net each pin belongs to and where test points are, helping to locate shorts and measure rails quickly. Check that your PCB is marked revision 2.0 or 2.1, and note that the two revisions may differ in small details.
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 @alischematics. 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.