How to Set to Always Open a Similar File with a Preferred Application in Mac OS X

The Wrong Way to Do This

1. Right click on the file



2. Select "Open With", and then select "Other...", choose the application

Doing #1 and #2 will lead to always open rand-anthem.epub with Adobe Digital Editions, instead of setting to always open epub file with Adobe Digital Editions.



The RightWay to Do This

1. Right click on the file, choose "Get Info"



2. A left panel will show up.  Select "Open with:" and then check the specified application.



3. Click on "Change All.."



4. Click "Continue", and now you have a MAC OS which always open epub file with Adobe Digital Editions.

Why a blog post was made to explain this

Because the way to do this in MAC OS is ridiculously against the common sense.