Generic 1.34 MB rar archive labelled for the Redmi Note 7, with no other detail in the name and no brand field. Its contents are unknown until extracted; such packages usually carry schematics, layouts or small service files for smartphone board repair. If it holds diagrams, use them to trace PMIC outputs, charging and display lines and to locate parts near a short. Confirm the phone's PCB revision matches the documents before relying on component values or test-point locations.
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 @SMART_PHONE_SCHEMATICS. 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.