An archive of repair files. Shared as “SUPRA_STV_LC19660WL,_Main_5800_A8M280_OP10,_Panel_E185SG01_Copy.rar” — a .rar file, 2.40 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 @led_software. 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)