Archive in RAR format for the ASUS RX6800XT card, naming board D412BS revision 1.00X, the same PCB code listed for the RX6900XT version. Contents are not described in the name; such packages usually hold schematics or boardview files. Unpack with 7-Zip or WinRAR, then view with a PDF reader or boardview tool. Technicians use them for following core, SoC and memory power, checking fuses and inputs, and locating components. Confirm the board code and revision on the card match first.
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.