Hi @n-riesco - Right now you can export the source code to your computer. Navigate to the file you want > click the down caret > export. This will be in .py, .scala, or .sql format.
Databricks also has GitHub integration for source code version control. To access this within a notebook click "Revision History" on the top right corner.
Also, Databricks is looking to add the ability to export to .ipynb format in coming releases.