RAR archive of 853 KB for the Quanta GM7 board, revision D, used in the Dell XPS L701X notebook. Quanta was the ODM behind this Dell model, and the GM7 project code is printed on the PCB. The material is probably a schematic for following rails, checking MOSFETs and inductors for shorts and locating chips around power faults. A related GM7B revision F exists for the same laptop, so verify the exact code and revision on the board before relying on part 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.
7-ZipWinRARThe Unarchiver (macOS)