RAR archive of 2.05 MB titled LEO 40AFWIN, apparently a TV model code, though no brand or content type is stated. Inspect the contents after extraction: packages of this size commonly carry a mainboard flash dump. They can also carry a service document for a budget LED set. Before programming any image, confirm that the chip marking and capacity on your board agree with the file size, and keep a full backup of the original data. For schematics, compare the board silkscreen codes before trusting the values.
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 @hashmielecom. 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.