PDF of about 30.7 KB for the 5LP01S, categorised as a schematic though it most likely contains the component datasheet. Only the part code appears in the name; the series pattern suggests LP marks the P-channel MOSFET type and S a package version. It is handy for checking pinout, gate threshold, drain-source voltage and current limits during fault finding on low-power switching circuits. Compare the case drawing with the actual footprint and confirm the marking before fitting a substitute.
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.