ASUS X553MA archive, a 1.15 MB RAR with RG in the name, a tag that on ASUS files typically refers to the board revision release without stating the number. Its size is close to the matching PDF schematic, so it may contain the same diagrams in compressed form; check after extracting. Schematics for this model help trace the charging circuit, standby rails and main power sequence, and identify components responsible for a short. Open extracted PDFs in any reader. Make sure your board revision matches the document before replacing parts.
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 @cyberlanelectonik. 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.