When starting on a new project, you will be immediately interested in the site Datums: such as Levels, Grids and Base Points. If you receive a Revit model as a basis for your own work, it may be useful to quickly export the information from these Datums to Excel. This node takes no inputs, and works from the current model to create 2D list of BasePoint, Level information, and Grid names.
If information is missing from the output list, or to ensure matching row lengths, it simply generates a “NullValueReplaced” value, which you can then Find / Replace to delete once you are in Excel.