Ensure you are not trying to open the license file with a text editor. It must be read directly by the iPartition application.
Before you spend too much time hunting for your license file, there is a major technical caveat you must know: ipartition licence file
head -20 /opt/ipartition/licenses/ipartition.lic Mastering the IPartition Licence File: A Comprehensive Guide
The iPartition license file is a digital certificate that verifies the authenticity and validity of the software. When you purchase a license for iPartition, you receive a license file that you need to install on your Mac. This file unlocks the full features of iPartition, allowing you to: head -20 /opt/ipartition/licenses/ipartition