I'm using CC 2018. I created a business card template by saving the art via File --> Save as Template. Double clicking that file in the finder opens a regular Illustrator document (.ai) with the saved art as expected.
However, I need to change a color in the template. I thought opening the .ait file from within illustrator via File --> open would allow me to edit the template itself. Instead it does the same thing as double clicking it from the finder (described above).
What am I doing wrong?