Bandizip creates archived files in various formats. It can open and extract these files for you as well.
Customization options: When you first install Bandizip, a window opens, asking you which file types you'd like to associate with the program. You can make your selections by checking or unchecking the boxes next to the various options, or you can simply go with the defaults that are already set. You can also go back and adjust your choices at any time.
Clean interface: The interface is clear, so you shouldn't have any trouble figuring out how to use the various features available. There is also a good Help file to refer to, if you do have questions or get stuck on something.
Few bugs: We did encounter a few minor issues during testing, including some unclear instructions for how to encrypt a file. There is a step missing, and without taking that step, you won't be able to enter a password for the selected file. The options didn't automatically show up in the finder's right-click menu, making it a slightly more complicated process to open a compressed file or create a new one with the app.
Bandizip is a free utility, and it's a powerful option for carrying out all kinds of processes with various compressed file formats. While we did encounter a few minor issues during testing, the program performed well overall, and it offers a nice set of options for customizing your user experience.