HTML files saved as .txt normally open as text files when double clicked, UNLESS, you have suggested to the system that it should use Safari or some other browser.
Get Info on the files you have saved with a .txt extension and make sure that the default program to open them is TextEdit.
Repeat for the files you saved with .htm extensions and check for your browser
To check how you did without saving the file as HTML, right click (Apple + Click) the file and choose Open With and pick the browser.
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I am trying to use the text editor in my mac to rewrite some html I found off of the internet, Could anyone tell me why the saved source files (as text) do not open back up as text and how I can view changes I have made to a source file (copy of a source file)?

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