Boardview for the Apple iPad 2, saved as a 213 KB .bvr layout file. The name gives just the model, with no board number, revision or Wi-Fi versus cellular variant mentioned. In a compatible viewer it shows both sides of the logic board with component outlines and net names, letting you click a pin and see every part on the same signal. That makes it handy for finding where a shorted rail ends up, locating test pads and identifying unmarked passives. Check that the board in hand is the matching iPad 2 revision first.
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 @GENERAL_SMART_PHONE_SCHEMATICS. Enginerys does not host this file.
How to open a .bvr file
Text boardview from the BoardView R family of tools, seen for Lenovo, MSI and Clevo boards.