FoxTool is an open-source Fox Engine XML compiler/decompiler for Metal Gear Solid V: Ground Zeroes and Metal Gear Solid V: The Phantom Pain created by Atvaark. It is capable of reading the data from compiled XML files and converting them back into standard XML files, where users may read and edit them. It can also do the opposite, converting standard XML files into compiled XML files.
To decompile a compiled XML, the user simply needs to drag the file onto FoxTool. To compile a decompiled XML, the user simply needs to drag the .xml file onto the tool.
The following is a list of all formats compatible with FoxTool:
FoxTool utilizes a dictionary of filenames called fox_dictionary.txt. As it decompiles the fox2, it compares the hashes generated from this dictionary to any hashed string literals it finds. If it finds a match, it will output the string by it’s real name. If it cannot find a match, it will output the string by its hashed name.