This is the specifications for the archive file which is handled by the Game Extractor plugin Archive_PACK_PFH5.

Endian Order:Little Endian
Compression:none
Encryption:None


This format is used by the following Games:
A Total War Saga: Troy *.pack


This is the format specification information:
 
// HEADER
  4 - Header (PFH5)
  4 - Version? (1)
  8 - null
  4 - Number of Files
  4 - Details Directory Length
  4 - Unknown
  
// DETAILS DIRECTORY
  // for each file
    4 - File Length
    1 - Unknown (null)
    X - Filename
    1 - null Filename Terminator
      
// FILE DATA
  // for each file
    X - File Data


Game Extractor is able to read files of this type, as well as files from thousands of other games. To give it a try, download Game Extractor (Basic Version) for free, and see what it can do.

For further information on this format, refer to the source code on our GitHub repository.