This utility makes it easy to decompress one or more SAV/BIQ/BIX/BIC files at the same time. Historically, this has not necessarily been a straightforward task. I've considered making a small utility for this for years; finally tonight I decided to go ahead and make it. There are two versions - a GUI one, and a command-line one. The GUI one is for if you just want to decompress a few files for your own testing or use. The command-line one is useful if you wish to use it to provide decompression for your own utility programs. I currently use it in this way in my Conquests editor - when decompression is needed, it invokes the command-line version of this decompression utility as an external program, and when the command-line version terminates, the editor then reads in the decompressed file. If you decompress My Game.SAV, the decompressed version will be called My Game Decompressed.SAV. Attempting to decompress an already-decompressed file will fail, but the original file will not be harmed. If there's demand for it, I'll add the ability to better detect already-decompressed files, but it's late and I ought to get some sleep. The GUI version requires Java 1.6 (Win2K/OS X 10.5 or later), whereas the command-line version requires Java 1.4 (Win98/WinNT4/OS X 10.2 or later). The command-line version runs simply: Code: java -jar BIQDecompressor [inFile] [outFile] If you use OS X, you may have already been using FileValet utility by AlanH. For decompression, they should function the same, and there's no particular reason to switch to this decompressor over FileValet. The main goal of this is to provide an easy way to decompress for those of us who don't have Macs, as well as for anyone wishing to include decompression in a utility. Credits for the decompression itself go to chiefpaco. I have only added command-line and GUI front-ends to his decompression routine. Spoiler GPL Information : This utility uses chiefpaco's decompression routine. As that appears to have been intended to been GPL'ed, these utilities must be also. As I understand it, you can still use this in part of your non-GPL utility as long as it is used as an external program. See the below quote from the Free Software Foundation: Obviously it would be preferable if a non-GPL decompression routine were readily available, but not knowing of any that are cross-platform, and having never seen this one fail, these utilities currently use that version. This shouldn't pose a problem for anyone if they are used properly, although even those who actually are lawyers don't appear to really know, so tread accordingly. The source files are available inside the .JAR file by decompressing it, and then opening the biqdecompressor or biqdecompressorui folder as appropriate.