PDF datasheet, about 463 KB, for the SF13CR part with a CS suffix. The name offers no detail on application or revision, so the first pages should be checked to identify the component type and manufacturer. Datasheets of this sort normally provide pin descriptions, absolute maximum ratings, electrical characteristics and package outlines. A technician uses them to verify correct supply voltages, identify pins when probing on a board and choose a compatible replacement. Make sure the marking on the actual part matches the full code.
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.