Hello, I recently got a Samsung Galaxy Tab S2, and I've been trying to use MS Excel on it. I have two questions I'm hoping someone can answer. 1. How do I get rid of excess columns? Say I only want 5 or so to show up. I tried highlighting them and selecting delete, but nothing happened. Then I tried selecting "hide" instead of delete... this worked but...the columns seem to go on forever. After the full alphabet it goes through AA, AB, AC and so on. Even so far as AAA, AAB, etc. 2. Is there a way to rename the columns themselves? Instead of column A saying A, can I name it something else? Thanks.