Reduce tgz file size

Download and install the latest version of Filestar.
Right click on one or more Tgz file(s) on your desktop and select Convert with Filestar.
Type reduce file size in the search box.
Press Run.

What is .tgz?

Name: Gzipped Tar File
Extension: .tgz
Format: Binary
Category: Compressed
Developer: GNU
Description: Unix .TAR file archive compressed with Gnu Zip (.GZIP) compression; uses a TAR archive to bundle the files together and Gzip compression to reduce the file size; commonly used on Unix and Linux systems; originally created as the shorthand version of the compound extension .TAR.GZ.
MIME Type: application/x-compressed
Sample: sample.tgz
Wikipedia: .tgz on Wikipedia