Step 1: Preparation
First save your project as a *.opf file then save it as a *.json file with a different name.
This will protect your file from any accidental error that may happen when opened in a JSON editor. There is a wide variety of JSON text editors available for free, as well as a plug-in for Notepad++. If you have JSON development skills this feature will let you create your own project builder or make changes for different projects. You must use great care when editing your project with any JSON editor and we suggest you test that a saved project from any JSON editor loads into the TOP Server successfully.
NOTE: For V5.x users previously saving as .XML, it is still possible to open .XML format files in TOP Server Version 6. Save options in TOP Server Version 6 are limited to .OPF and .JSON.
Start by going to File | Save As in the TOP Server Configuration