RAR archive of 1.04 MB for the Samsung X60 notebook. The file name identifies the model only, giving no project code, board revision or description of contents. Repair packages of this type usually hold a PDF schematic used for following power rails, diagnosing shorts to ground and finding component values around the charger, VRM and memory supply. Extract it with WinRAR or 7-Zip. Samsung notebook boards carry a BA41 code on the PCB, and that number should be matched to the document before you rely on it.
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 @IT_SERVICE_WORLD. 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.