I have 4 columns and 87 rows. The columns I'm using are A, C, E and G. I did a division of E by C, and the result is in G. Now I want to re-arrange all the rows according to the numerical values in G, lowest to highest. I've tried using "sort" in the data tab using the whole of column G, and checking the "My data has headers" because I am using a header, and I get this entry in the 2 row (unused row)....#DIV/0! So I then tried highlighting just the rows needed, without the header row, and sort does absolutely nothing at all. Any ideas? Cheers.....Steve