.GZA File Extension
File TypeIZArc BGA Archive File
What is a GZA file?
Archive file created by IZArc, an application used for file compression and decompression; stores one or more files that are compressed using the "GZA" method of BGA compression, which is an uncommon compression format; can be decompressed in IZArc to restore the original files.
The other archiving method for BGA compression is "BZA," which is used to create .BZA files in IZArc.