How to Make Alternating Row Colors in Excel

I was at work the other day staring at endless rows and columns of data on a spreadsheet with my boss. She made a statement about how she “wished there was a way to separate the rows to make it easier to look at.” I smiled and said there was and sprang into action, putting my Excel skills into use. Using a simple formula in conditional formatting I made every other row a different color. She was impressed.

So here’s my tip to get alternating row colors when not using tables or shared worksheets. The trick is to use conditional formatting to apply a fill color to even numbered rows by using this formula:

 

=(MOD(ROW(), 2)=0)

How does it work? The function MOD returns the remainder after a number is divided by a divisor. The ROW function returns the row number of a reference. So the formula takes the current row number and divides by two. The resulting remainder is either a 1 or a 0. If we set the conditional formatting formula equal to 0 then every other row will be colored in. Make sense?

 

 

Here’s a short video showing exactly how to use it if you’re confused:
 

I hope that helps!

How do I compute the total number of configurations of two or more lists in Microsoft Excel 2007?

How do I compute the total number of configurations of two or more lists in Microsoft Excel 2007? The formulas you will need use are the INT, MOD, COUNTA, ROW, and OFFSET functions. Here is an explanation of each:

INT rounds a number down to the nearest integer.
MOD Returns the remainder from division: MOD(number,divisor).
COUNTA function counts the number of cells that are not empty in a range.
ROW(reference) is the cell or range of cells for which you want the row number.
Row ( ) If reference is omitted, it is assumed to be the reference of the cell in which the ROW function appears.
Example: =ROW( ) - 1 inserted into a cell in row 26 will yield the result 25.


Here are the formulas for a two column combination:
=OFFSET($A$1,INT((ROW()-1)/(COUNTA(B:B))),0)
=OFFSET($A$1,INT(MOD((ROW()-1),COUNTA(B:B))),1)

First Column Formula Explanation:

=OFFSET($A$1,INT((ROW()-1)/(COUNTA(B:B))),0)

Takes the row number and subtracts one from it. Then it divides this number by the number of options in the second column. This value is then rounded down to the nearest integer (whole number). This in turn is the number of the row in which it will select the answer, starting with 0.




Later on I will give an example of to use this formula up to ten unique columns.