Launch the package using the e-mail application. For example, double-click the attachment file.
Use Explorer or Finder to open the file. For example, double-click the file or drag it to the InDesign application icon.
In InDesign, choose File > Open, and double-click the package file.
In InDesign, choose Open Package from the Assignments panel menu, and then double-click the package file.
You’re prompted to update all links when opening the package. If a story has been modified since the assignment was packaged, you can determine whether to update or unlink the content in the InDesign file. When the stories in the files are returned and checked in, you can check out and edit the content.