RAR package of 4.39 MB for MSI board MS-7037. Only the board code is in the name; revision, chipset and contents are not given. MSI numbers desktop motherboards of its own design in the MS-7xxx series, and the code appears on the board. The size suggests a schematic or several files rather than one firmware image, but extract it to check. Confirm the PCB revision first, and for any BIOS image, save the original chip and match the flash size before programming.
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 @IT_SERVICE_WORLD. 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)