PDF document named STD List, 478 KB, classed as a datasheet. The name is generic and reveals no manufacturer, product family or component type. It is probably a standard parts or product list, but the contents must be opened to know what it covers. Lists of this kind usually serve as a cross-reference, for looking up part numbers, variants or ordering codes before searching for the individual datasheet. Treat it as an index, and confirm any specification against the full datasheet of the exact part.
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 @acodis_lcd_datasheets_EDID. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.