Keynote files are text files that define the categories and keynote values that you assign to element types, materials, and individual elements.
Keynote files for a standalone installation reside in the Revit library, which is located by default in
%ALLUSERSPROFILE%\Autodesk\RVT 2021\Libraries\<locale and language>
The file can be located on a network server or a remote server so that it is available to all users. Use the Keynoting Settings dialog to specify the file location.
The following files are provided and installed during deployment: