The ETE file extension is for Exam Testing Engine Test Format files . ETE files are text files created by the Exam Testing Engine software to store practice exam questions and answers. These files can contain multiple choice, fill-in-the-blank, drag and drop, and other interactive question types. The Exam Testing Engine software is used to create, edit, view, and take ETE practice exam files on Windows and Mac computers as well as Android and iOS mobile devices. There are full and lite versions of the Exam Testing Engine software with different capabilities. The lite ETE Exam Lite Package allows taking tests from ETE files while the ETE Exam Pro Package also supports creating, editing, and printing ETE files. ETE files are most commonly used in the United States and by Google Chrome users on Windows 10. They are similar to VCE files from the Visual CertExam Suite software. Users should be cautious opening ETE files from unknown sources as the extension can be used by potentially harmful software.