In other words, laminate flooring is a floating floor. If the glue, adhesive, or thin set are used to attach the floor product to the sub floor, the underlayment serves different purposes when used under a laminate floor. 1. Padding or underlayment serves as noise reduction.
To open a new window, press and hold (or right-click) the Internet Explorer tile on the Start screen, and then tap or click Open new window. You can view two windows side-by-side on your screen. Open one window, and drag down from the top edge to the right or left side of the screen.
Another option: Simply use Bing, Google, or any other search engine. Search for Open .ext file, replacing ext with the mystery extension. That's actually how I found the solution to Rose's problem. She needed to open a .3de file, and a Google search for Open .3de file led me to a program called DeskArtes 3Data Expert.