Small RAR archive of 48.8 KB tied to the AlphaBox X6 receiver. The name gives no version, date or content type, and the low size points to settings, a channel list, a key file or a tool rather than full firmware. Extract it to see what it actually holds before taking any action. AlphaBox X6 boxes are usually serviced with USB updates or loaders, so check that any contents match the hardware revision, and back up the current state of the device before making any changes.
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 @tvsoftwareworld. 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.