ZIP archive of roughly 373 KB for the P6T WS Pro, a workstation motherboard name from the LGA1366 X58 era. The name specifies no revision or contents, so unpack it to check whether it holds a boardview, schematic pages or other service data. Workstation boards have dense VRM and PCIe switching circuits, and a boardview or schematic speeds up locating components and tracing rails during short or no-boot diagnosis. Compare the revision silkscreened on the board with the document before relying on any part placement.
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 @boardview. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.