A task item is shared by exporting the task item to an .esriTasks file. An .esriTasks file can be imported and opened in a different project.
Export a task item to a task file
In the Catalog pane, right-click the task item in the Tasks folder, point to Export To File and click Save As to export a task item to a task file. The task item is saved as an .esriTasks file.
To save an open task item as a task file, click Task File on the Share tab on the ArcGIS Pro ribbon. The task item that is currently open in the Tasks pane will be saved as an .esriTasks file.
An .esriTasks file can be imported into a project and opened in the Tasks pane. When importing a task file, the tasks will run as long as the data referenced by the task steps can be accessed. The data used by the task steps is not saved with the task file. If you want to save the data with the tasks, create a project package.
Share a task item using a project package
A project package is used to share a complete project with others. A project package is a portable file that contains all the project items such as maps, data, toolboxes, and task items.