If you are troubleshooting a file with this name or trying to create one, look for articles titled: "Everything You Need to Know About GZIP and TAR Archives" "How to Automate File Compression and Uploads to Telegram"
1. The Linux/Unix Power User Guide: Mastering .tar.gz and .tgz TGnewzip
The "TG" prefix is frequently used in community scripts for . A blog post on this would likely cover: If you are troubleshooting a file with this