You can create an Excalibur project from one of the following workflows in ArcGIS Excalibur. You can create a project from the search queue in the Search and Discover page or save a project from canvas.
Create a project from Search and Discover
Use Search and Discover to search for imagery or video to use in your project. Add images or videos to the Search Queue from your search, and follow the workflow in Create an Excalibur project.
Create a project from the canvas
If you are working with imagery or video in the canvas and want to save your work on-the-fly, you can do so by following the workflow in Save a project from the canvas.
Upload a project definition file
Upload a properly formatted .json file to create an Excalibur project in a single step by following the workflow in Upload an Excalibur project definition file.