Udemy Q&A Formatter is a magical Chrome extension developed by r0cky.ryota.aoki. It is designed to help users study Udemy practice exams in a Q&A format. With this extension, users can make the most of their study hours and quickly learn through practice tests.

To begin using the extension, users need to purchase the practice test of their choice and open the practice test page. They can then select "Start Test > Complete Test > Review Questions" to display the Commentary page. By clicking on the purple Udemy Q&A Formatter icon on the toolbar, a pop-up will appear. Users can proceed to make a payment of $3 on the Stripe payment page. After reloading the page, they can start studying.

During the study process, users can select "Start Test > Complete Test > Review Question" to view the explanation page. For single-choice questions, pressing a choice will provide an immediate correct or incorrect answer. For multiple-choice questions, users need to select the checkbox they believe is the answer and then press "Submit" below the question text to determine if their answer is correct or incorrect. The percentage of correct answers and the number of answers are displayed on the right side of the screen.

Udemy Q&A Formatter is a valuable tool for those looking to enhance their learning experience on Udemy and improve their performance in practice exams. However, it is important to note that this extension requires a payment of $3 to be used.