What are the different ways you can see multiple workbooks on one screen at the same time? When might you want to do this?

What will be an ideal response?

You can use the Arrange All options on the View tab and arrange the open workbooks either tiled, horizontal, vertical or cascade. The configuration you use will depend on how many files you have open and how you want to view them. This is especially helpful when you create links between workbooks or want to copy and paste from one workbook to another.