Apple iPhone 7 repair package packed as a 4.83 MB RAR archive. Nothing in the name says whether it holds schematics, a boardview or other service data, so open it and review what is inside before planning a repair. Material of this kind is typically used to follow supply rails, identify components around the baseband, audio and charging sections, and locate test points for measuring diode readings. Always compare the logic board markings with the documentation, since different board variants of one model can differ.
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 @schematicslaptop. 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.