File > Print. Then in the ‘Layout’ options, change Pages per sheet to 2. The preview will still show it as af it’s printing normally, but it will do what you’re wanting when you print (save to pdf to check). If you’re wanting to get it to really read like a book, you’ll need to print 2 pages, turn the sheet of paper onto the other side, print another 2 pages and so on. Here’s a screenshot