RAR archive of 1.16 MB for Apple logic board 820-2375 with an A suffix, most likely indicating revision A. No model or contents are stated in the name. Another archive for the same board names it as a MacBook Air A1304 with M96, which may help cross-reference. Check the number and revision on your PCB, then extract the files and use the schematic or boardview to follow rails, check signals and locate components, test points or the source of a short.
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 @Mac_Shematic_Santale. 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)