4th Dimension can export and import methods in two formats:

- 4D method (extension ".c4d" under Windows): In this format, methods are exported in encoded form. The names of objects are tokenized. This format is used in particular for exchanging methods between 4th Dimension applications and plug-ins in different languages. It is not possible to display this format in a text editor.

- Text (extension ".txt" under Windows): In this format, methods are exported in text-only form. In this case, the methods are readable using a standard text editor. However, the languages of the 4D applications used for export and import must be identical.

The following tech tip has instructions to export and import methods in 4D, https://kb.4d.com/assetid=39438.