There is only one file type that uses the .UTZ extension:
UIQ Theme Package
Theme package used by UIQ-based mobile phones, which include some phones created by Sony Ericsson and Motorola; contains a theme, including graphics and sounds; used to change the look and feel of mobile phone interfaces.
UTZ files are stored in a compressed Zip format. They contain an .XML configuration file named Theme.xml as well as other files, such as .PNG images and .MP3, .MID, and .M4A audio files. Theme.xml specifies the user interface layout and playback properties for the packaged theme files.
The UTZ format is used by UIQ, a program based on Symbian OS that controls the graphical user interface of mobile phone devices.
NOTE: Sony Ericsson Themes Creator has been discontinued.
|Sony Ericsson Themes Creator|
Updated: June 2, 2020