RAR archive of 1.04 MB for the MSI Z97S SLI Krait Edition motherboard, board number MS-7922, revision 2.0. The exact contents are not listed, so check after extraction whether it holds a schematic, a boardview or both. Since the board is built around the Z97 platform, these documents help trace CPU VCORE phases, PCH rails and the PCIe lanes used for SLI. Verify that the PCB reads MS-7922 revision 2.0, because other revisions can differ in layout and component values.
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.