Javascript (.JS) file zipped using GZip (.GZ) compression; typically used for shrinking the file sizes of large Javascript documents referenced by websites; can be decompressed on the fly by most Web servers using a Gzip utility.
JGZ files are also used by the JNode operating system.
Program(s) that open jgz files
Mac: Smith Micro StuffIt Deluxe for Mac Windows: Smith Micro StuffIt Deluxe for Windows; Corel WinZip; RARLAB WinRAR; PicoZip; 7-Zip; WinACE
Unix: gnuzip or gzip
Information from FileInfo.com - The File Extensions Resource.
http://www.fileinfo.com/extension/jgz
