I have Microsoft 2010 excel and word. I'm assuming to do this I need to mail merge? (Probably wrong) I'm looking to make 500 index cards, and I want them numbered. I'm using the Avery template for 3.5 index cards that puts 3 on a page. Is there an easy way to have them automatically number without me having to type 1..2..3..print.. delete...4..delete...5.delete..6..print all the way to 500 Etc. Thanks for the help!