A 163 KB PDF filed as a schematic and named 28F010 followed by an underscore, likely a second edition or vendor version of the same device sheet. The 28F010 belongs to the 1 Mbit parallel flash series. No manufacturer or package is stated. The content should include pin functions, programming algorithm, voltages and AC timing. Compare it with the plain 28F010 document to pick the one matching the marking on your chip, then select the right programmer profile and back up the original 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 @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.