How to extract hidden information from PSD?

Question

reverse engineering

There is a quest, at a certain step it leads to a file on Yandex.Disk https://yadi.sk/i/adKsT7wJI0luqA
It was not possible to find instructions for further actions, maybe the community will help

Answer 1

Look at the file in a Hex editor and you'll see something like:
Data... some block of spaces mixed with other characters... Data again.

spoiler

00000800: 203c 2f78 6d70 4d4d 3a48 6973 746f 7279   </xmpMM:History
00000810: 3e0a 2020 2020 2020 3c2f 7264 663a 4465  >.      </rdf:De
00000820: 7363 7269 7074 696f 6e3e 0a20 2020 3c2f  scription>.   </
00000830: 7264 663a 5244 463e 0a3c 2f78 3a78 6d70  rdf:RDF>.</x:xmp
00000840: 6d65 7461 3e0a 2020 2020 2020 2020 2020  meta>.          
00000850: 2020 2020 2020 2020 2020 2020 2020 2020                  
00000860: 2020 2020 2020 2020 2020 2020 2020 2020                  
00000870: 2020 2020 2020 2020 2020 2020 2020 2020                  
00000880: 2020 2020 2020 2020 2020 2020 2020 2020                  
00000890: 2020 2020 2020 2020 2020 2020 2020 2020                  
000008a0: 2020 2020 2020 2020 2020 0a20 2020 2020            .     
000008b0: 2020 2020 2020 2020 2020 2020 2020 2020                  
000008c0: 2020 2020 2020 2020 2020 2020 2020 2020                  
000008d0: 2020 2020 2020 2020 2020 2020 2020 2020                  
000008e0: 2020 2020 2020 2020 2020 2020 2020 2020                  
000008f0: 2020 2020 2020 2020 2020 2020 2020 2020                  
00000900: 2020 2020 2020 2020 2020 2020 2020 200a                 .
00000910: 2020 2020 2020 2020 2020 2020 2020 2020                  
00000920: 2020 2020 2020 2020 2020 2020 2020 2020                  
00000930: 2020 2020 2020 2020 2020 2020 2020 2020                  
00000940: 2020 2020 2020 2020 2020 2020 2020 2020                  
00000950: 2020 2020 2020 2020 2020 2020 2020 2020                  
00000960: 2020 2020 2020 2020 2020 2020 2020 2020                  
00000970: 2020 2020 0a20 2020 2020 2020 2020 2020      .           
00000980: 2020 2020 2020 2020 2020 2020 2020 2020