MSI MS-6730 archive in ZIP format, 1.17 MB. Brand and board code are the only details in the name; revision, content type and version are not given. Extract it to see whether you have diagrams, firmware or both. The MS-6730 code and revision should be read from the PCB and compared before relying on anything. Schematics help trace rails, signals and test points when diagnosing a short or dead board. A BIOS image needs a programmer and a prior backup of the original chip to avoid losing working data.
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 .zip file
Compressed archive that every operating system opens without extra software.