One of my favourite features that (all?) mac computers have is that you can quickly and easily preview a file by pressing the space bar. It's really handy in many situations. Imagine you have a folder full of Word documents and you want to quickly look over one without actually opening it in Word - in this case you would just select the file you want to look at and press space and get a preview more or less instantly. Same thing for media files like photographs and music.
To download Quicklook just use the link below that takes you to the Microsoft Store. And click 'get app' or download and follow the instructions.