PDF document of about 130 KB labelled with the JEDEC code 2N6802 and filed as a schematic. The file name carries no model, brand or board number, only the component designation. Documents titled this way are usually manufacturer datasheets for a discrete semiconductor. A repair tech would read it for terminal identification, breakdown voltage, current limits and thermal data when diagnosing a shorted device or picking an equivalent. Always match package type and pin order before swapping.
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 @cyberlanelectonik. 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.