The tutorial sample data is available from autodesk.com. You need that sample data to use most of the tutorials. (You can work through the Building A Map tutorial using a simulation, which does not require sample data.) Download the zip file for each tutorial you plan to use, and extract it into a subfolder in the \ProgramData\Autodesk\Autodesk AutoCAD Map 3D 2023 folder.
To use the sample data
To continue this tutorial, go to Exercise 2 Save your tutorial maps.