An archive of repair files for Samsung hardware. Shared as “TP_MS338_PB801_HD_SAMSUNG_IR_4GB_512MB.rar” — a .rar file, 414 MB.
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 @gunvantrathore. 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)