Datasheet in PDF for the PVI-2002A, version 1.1, around 2.61 MB. The PVI prefix suggests a Prime View International part, possibly a panel controller or timing chip, though the name does not say what the component is, so check the opening pages. A document of this size typically contains pin descriptions, register maps, timing diagrams and application circuits. Technicians use such material to probe supply and clock signals around the chip on a display board. Confirm the chip marking and version before applying the data.
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.