PDF datasheet, 256 KB, covering SFA079DS3 with an AV suffix. No brand or target device is stated in the name, so confirm the maker and product family from the document header. A datasheet of this sort gives pinout, operating voltage and current, absolute maximum ratings and physical outline, used during repair to check measurements and assess replacements. The code resembles SFAV79-DS in the same collection but is a separate document, so make sure the marking on your part matches SFA079DS3-AV exactly before relying on the figures.
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.