I am using TextWrangler to update my church's site.

I wrote a new page by copying most of an old page, except for the middle content, and it saved as an HTML file. When I double-click it, it opens in TW, not in a browser. I can "open with" to force it to open in a browser.

Yet my older files do open in a browser when double-clicked.

The difference seems to be file vs document.

How do I convert HTML file to HTML document?

Much obliged for any help!