I'm trying to figure out how to sort files by size in Finder - on a MacBook Air running OSX 10.9.2. I click on "view" - then "arrange by" - then "size." It groups the files into two categories - those 10 K to 1 meg and those 1 meg to 100 megs. Within each category they are alphabetical, not by size. This is utterly useless! Does anyone know how to change it so files are actually sorted by size? Thanks!