There are 2 file types use the .JSX file extension:
Because JSX files are plain text files, you can open them in any text editor, such as Microsoft Notepad (Windows) or Apple TextEdit (Mac). However, if you plan to edit a JSX file, you should open it in a source code editor, such as Microsoft Visual Studio (Windows) or Github Atom (cross-platform). Source code editors provide helpful editing tools and highlight JSX syntax correctly.
Updated: May 25, 2021
2. ExtendScript Script File
Updated: April 9, 2019