RAR archive of 1.04 MB for the N4030 UMA board, tagged DJ1, 10212 and SB; DJ1 is likely the project code and 10212-SB may be a board number with revision, but the name does not confirm this. UMA indicates integrated graphics only. The material is probably a schematic used to trace rails and signals and find components. Before relying on it, match the codes printed on the motherboard with those in the document. Extract with 7-Zip or WinRAR.
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 @generalschematics. 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)