Conditional Formatting and Icons

Morning,

I am trying to use the conditional formatting where I change values into icons - in this case a tick, exclamation mark or cross. Is there a way to do it using the "only format cells containing" way?

When I do it the 'icon set' way I'm struggling to get the right markers.

Thanks

You could by using the Wingdings font. If you want more specific help, then attach a sample file.