Repair archive for the Apple iPhone 7 at 50.1 MB, likely bundling schematics, boardview files and related references, though the name does not list them. Technicians rely on such data for audio IC, baseband and charging faults common on this model. Use it to locate components, read diode values and follow rails across the board. Check which modem variant your board carries, since iPhone 7 boards exist in Intel and Qualcomm versions with different layouts.
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.
7-ZipWinRARThe Unarchiver (macOS)