Definitions in Rules Factory can be exported to an external file. The exported file can be used later under import option.
The export option is located under context menu of almost every tree element in the tree view (left side),
Upon clicking archive file containing selected definition (and all it's underlaying definitions) downloads through your web browser.
Please note, that there might be some (built-in) definitions which can't be exported.
To export all definitions, use export option on top element.