I created a very complicated set of black borders on an Excel worksheet. I have now learned that they should have been in another color. Is there any way I can select and change all of them at once, or must I select each one individually? Thanks.

Select the first cell with border. Hold down the Ctrl key and select (one at a time) all other cells with borders. Change the border color. OK.

Thanks, but I have over 4000 cells. Selecting each one, one at a time, is not an option. Also, when I tried it, I still had to select each cell wall individually. That's up to 16,000 actions.