PAK (File Format)
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PAK is a container file format used in games developed by Vicarious Visions, such as Marvel Ultimate Alliance 2, Crash Bandicoot N. Sane Trilogy and Crash Team Racing Nitro-Fueled.
File Format
The file byte order is always little endian.
Header
Offset | Type | Description |
---|---|---|
0x00 | Char[4] | File magic. Always IGA\u001A. |
0x04 | UInt32 | File version. |
0x08 | UInt32 | Unknown. |
0x0C | UInt32 | Number of file entries. |
0x10 | UInt32 | Size of compressed data chunks in bytes. |
0x14 | UInt32 | Unknown. |
0x18 | UInt32 | Unknown. |
0x1C | UInt32 | Unknown. |
0x20 | UInt32 | Size of table 1 in bytes. |
0x24 | UInt32 | Size of table 2 in bytes. |
0x28 | UInt32 | String table offset. Points to an array of UInt32s, which points to null-terminated strings. |
0x2C | UInt32 | Unknown. |
0x30 | UInt32 | Unknown. |
0x34 | UInt32 | Unknown. |
Hash List
After the header comes a hash list of the files. Presumably these are hashes of the filename, since the file entries are sorted by this hash. Each entry is a 32-bit value.
File Entry
The hash list follows by an array of file entries. Each entry has the following structure:
Offset | Type | Description |
---|---|---|
0x00 | UInt32 | File data offset. |
0x04 | UInt32 | Ordinal. |
0x08 | UInt32 | File data size. |
0x0C | UInt32 | Flag. 0xFFFFFFFF means it's not compressed. xxAx xxxx xxxx xxxx xxxx xxxx xxxx xxxx.
|
Tools
The following tools can handle PAK files:
- (none)