Packdata.pak

packdata.pak is the archive file for Carnivores: Dinosaur Hunter Reborn which contains all data files, including graphics, sounds, models, and configuration files. The archive contains 2320 files in total.

Animations have a gr2 extension, and the names of sound files start with  and textures with , but most files don't have extensions.

QuickBMS script
The following script allows this archive to be unpacked by QuickBMS:
 * 1) Carnivores: Dinosaur Hunter Reborn (PAK format)
 * 2) Written by Ekey (h4x0r)
 * 3) script for QuickBMS http://quickbms.aluigi.org

goto 0x8 get FILES long

for i = 0 < FILES getdstring DUMMY 0xC getdstring NAME 0x40 get CRC long get SIZE long get OFFSET long log NAME OFFSET SIZE next i

Viewing the exported files

 * So far only the .gr2 extension files, AKA Granny files, are known to be opened, as of May 2020 with a version of Granny File Viewer.
 * Actually, all files starting with HEX B5 95 11 0E 4B B5 A5 6A 50 28 28 EB 04 B3 78 25 are Granny-format files, and mark them as Big Endian format. The problem with the existing tools that support Granny formatted files (like lslib and a blender plugin) only support the Little Endian format, and refuse to load the Big Endian format (although it seems the format is the same, just the byte ordering is different). Note that with the mentioned tools the "granny2.dll" is required, and only windows is supported as host, as the DLL is used to decompress the files.