Redstring allows you to save and open projects, which contain all of your columns and models, for sharing and later use.
To save a project, click the Save button (or File -> Save), and browse to your save location. Enter a file name, followed by the .red file extension.
WARNING: If you leave off the ".red", Redstring will not be able to open the file later.
To open a project, click the Open button (or File -> Open) and browse to your save location. Click a .red file to open it.
NOTE: Currently, you cannot open a .red file by double-clicking on it (file associations aren't yet working).