You can do it more simply by using Excel’s “conditional formatting” feature and using a formula to color the rows.
I can never remember the formula, so I created a file with stripes built in. You can download it here: Stripes Template for Excel.
In the “Stripes” file, the very last worksheet also has some handy drop-down buttons. Check it out!
Download the Striped spreadsheet template (.xlsx, 52kb)