Datasheet for display module PE13264ARU-002-H, delivered as a 389 KB PDF. The 13264 portion likely indicates a 132 x 64 dot graphic LCD, with ARU and 002-H encoding build options and version. A file of this size typically includes pin description, controller interface details, electrical and optical data and a mechanical drawing. Use it to confirm the pinout and supply levels when a small screen fails, and check the full part number on the module before relying on it.
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.