Archive tied to the Samsung SM-A700H, the Galaxy A7 smartphone variant, at 12.9 MB. The name does not say whether it holds a service manual, a schematic, a board layout or firmware, so open it with WinRAR or 7-Zip and check what is inside first. Phone service documents of this kind help locate the PMIC, charging circuits, test points and connector pinouts. Confirm the exact model suffix on the device label, because Samsung variants differ in hardware and firmware.
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 @alischematics. 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)