ZIP archive of 111 KB tied to board 11324-1, a number matching the Wistron scheme. The GR tag in the name is not explained, so its meaning is uncertain; the small size suggests a boardview or similar layout data rather than a full schematic. No brand or model is given. Extract and inspect the contents, then open any layout file in a boardview viewer to locate parts and test points. Check that the PCB carries 11324-1 before relying 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 @cyberlanelectonik. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Built-in OS tools7-Zip