ZIP archive of 384 KB whose name references MT2700-MAB2LG with a leading number 40, likely a catalogue index. The name does not say what the archive holds or which device it belongs to, so open it and identify the files before relying on them. Small archives like this commonly contain a firmware dump or service data for a single board. Match the board marking on the actual PCB against the name, and if it is a flash dump, save the original chip contents before writing.
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 @gunvantrathore. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Built-in OS tools7-Zip