ZONGMING

Welcome to the APP. Thank you for using our application, our team pays attention to user experience, if you encounter problems in the use of the process, please contact us and communicate in time.






















































































A file extension is a mechanism used to identify a file format and let the system know which software to use to open the file.
The APP mainly provides common file extensions, aimed at promoting file extension related knowledge, the purpose is to let more people understand and learn the basic knowledge of file extensions. We provide a fun way to learn: Doodle learning method, through randomly generated file extensions, users can imitate doodle learning. Through this learning method, you can not only learn the knowledge of file extensions, but also learn the application scope of file extensions, and make learning fun.