Opening a theme file in TextEdit (Mac)
When opening a theme file (.html or .txt) in TextEdit you need to do one of the following:
Option 1: 1. When opening the file check the box on the bottom of the dialog window that says ‘ignore rich text commands’
Option 2: Open the app preferences first, then choose ‘Pain Text’ as the default type for opening a new file (then restart the app and open the file)
If all works out fine, when opening the theme, the first line you should see will start with <!doctype html>