How to Open a file using Automater

Automator is a workflow, so items tumble through it. Here is an example of a single-action or two action workflow that is saved to your Desktop:

Single action (you drag and drop the Jam file on the application icon)

1. Launch Automator, select Application, and then click Choose.
2. Utilities Library : Run Shell Script action
   1. Drag and drop onto the right-most workflow window
   2. Set Shell and Pass input as shown below
   3. Change the example Safari to Logic Pro X application name. If that name has white-space, then surround the application name with double quotes.
   4. When you drag and drop the Jam file onto this Automator application, it will replace the "${1}" argument with the full pathname of the Jam file, and hopefully, Logic Pro X will launch to an opened Jam file.

You replace Safari with the Logic Pro X application name. If the name contains white-space, then surround it with double quotes. When you drag and drop the Jam file on the Application, the "${1}" is replaced by the full pathname of the Jam file, and Logic Pro X should open with that file. I don't have the application, so cannot test.

Two-action (not drag and drop)

1. Launch Automator, and same instruction for Single Action.
2. Files & Folder Library : Get Specified Finder Items action
   1. Drag and drop the action into the larger workflow window.
   2. Add your Jam file
3. Utilities Library
   1. Drag and drop the Run Shell Script action to the right-most workflow window
   2. Use the same settings as the single action example above. Replace the example Safari with Logic Pro X as in the single action. When the Automator application is run the Jam file will fall from the first action into the Run Shell Script action and replace the "${1}" with its full path.
   3. Hopefully Logic Pro X will launch and open the Jam file
4. Save the Automator application to your Desktop where you run it with a double-click.

And you are welcome.