File extension TGZ is used for files archived in TAR format and compressed in GZIP format. A TGZ sample file is provided. Free software for creating and opening TGZ files are listed.
What is TGZ? TGZ is a file extension for files that are first archived in TAR format, then compressed in GZIP format.
TGZ files sometimes have .tar.gz extension.
Some technical notes on TGZ file format:
TGZ is not a new file format, because a TGZ file is really a normal GZIP file, except that the compressed file is a TAR file.
A TGZ file is created by first archiving all source files into a TAR file. The TAR file is then compressed into a GZIP file
to produce the final TGZ file.
To extract a TGZ file, a GZIP decompression tool should be used to restore the TAR file, which is then
unpacked with a TAR extraction tool.
TGZ files are binary files.
Here are the first 64 bytes of a sample TGZ file dumped in HEX values: