Your LocaleData translations can be exported in the form of YAML files in two different ways - through the web interface, or by using our ruby gem.
Through the web interface, you can export your translations per project language as individual YAML files. If you want to export all of your translations at once, you can do that in the form of a ZIP file.
However, we highly recommend the LocaleData ruby gem. The setup is quick and easy, and then you can download your translation files into your Ruby on Rails codebase directly from your command line.