I want to know if the icons and file names in the window showing the folders and files can be enlarged?
Yes, both can be enlarged, permanently. Zoom is not needed.
Do you want all windows to show larger icons and text? If so, click on your Hard Drive icon in the upper right corner, opening its Finder window.
From the View menu, select Show View Options. There you will see Icon Size and Text Size. Adjust both to your preference. You may also want to change the spacing between icons.
Now to apply this to "all" windows, click the Use As Defaults button at the bottom.
The reason I put all in quotes is that there is a caveat. If you have changed any characteristics of random Finder windows similar to this window, these changes will not be applied to those windows. As you find any that did not change, you will have to repeat the steps above, minus the Defaults button.