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1. Download the application package.  This is usually in a .dmg file format.
2. Navigate to the Downloads folder.
3. Double click the application package.  A dialog box will appear as the file opens.
4. A new window will appear.  This folder should contain the application, and may contain other files, such as instructions.
   

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   1. If there is another folder inside of this window called "Applications", simply drag the application into this folder.  The application will be installed.
   2. If there is no other folder, open a new Finder window.  Drag the application you're installing onto the Applications heading in the sidebar.  The application is now installed.

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