ASUS Strix B250H Gaming desktop motherboard boardview, with 1.02 in the name, most likely the board revision. The archive is 358 KB. Desktop repair work with a layout like this includes locating the CPU VRM controller, the BIOS SPI chip, the standby rails and the front-panel header nets. It also covers chasing shorts on the 12 V or memory rails. Open the contents in FlexBV, OpenBoardView or BoardViewer. Check the revision marking on the PCB against the file before measuring by reference designator.
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 @BoardSchematic. 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.