Tập tin được tạo và sử dụng bởi Wras, a Dutch web program that allows them to prove their knowledge and phát âm of words;có một danh sách các từ trong văn bản đơn giản.

The WRTS file is designed to be exported and shared with other Wrts users who can then open the file and practice the same list of words as the user who sent the file. The file can also be opened by text editors such as Notepad and TextEdit. NOTE: You must log in to the Wrts website in order to export and import the WRTS file.