You can preview your HTML files using the included previewer.
Just click on the earth-icon.
Select the HTML (*.htm or *.html) file you want to preview.
Click open.
The previewer will be started directly!
You'll see the file like a normal browser.
Why don't use a normal browser (like internet explorer)?
Because this previewer is started much faster.
Why? Because this previewer is only build to preview and have to load the page only!
Normal browsers have to build up their menus, adress field, history and much more.
BEFORE YOU OPEN A NEW FILE IN THE PREVIEWER
YOU'VE TO CLOSE THE PREVIEWER FIRST!