If you work with Excel on a Mac, you may be wondering how to use the strikethrough shortcut. Here are three ways to do it:

1. Select the cells you want to strikethrough. Use the shortcut Command + Shift + X to strikethrough the selected cells.
2. If you want to strikethrough a single cell, double-click on it to enter the cell editing mode. Then use the shortcut Command + Shift + X.
3. You can also use the shortcut Command + Option + 5 to strikethrough the selected cells.

These are just a few ways you can use the strikethrough shortcut in Excel on a Mac. Experiment with different shortcuts and see which ones work best for you.