Quanta W0C archive at revision 1A, 1.43 MB in RAR format. The name names no brand, model or DA board number, so inspect the contents to find the target device. Archives like this usually contain a schematic and sometimes a boardview, which technicians use to trace power rails, follow signals and locate components and test points around a short. Check that the W0C code and revision on the PCB match before relying on any part designators or 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)