find largest number in a range and change font to bold

I need to create a macro that will examine a range of cells, for example D12:T12, find the cell with the largest number value in that range then set the font for that cell to bold (or red, or change the cell background color). Can someone show me the code to do this? Thank you!

You can easily use Conditional Formatting with no code...

Select the range, eg. D12:T12

and go to Format|Conditional Formatting

Select Formula Is from 1st drop down and enter formula: =D12=Max($D12:$T12)

Note the First D12 denotes the top-left most cell in your selection....so you can apply this to multiple rows at once, checking each row for the max in that row....

Click Format and choose from the Font or Pattern Tab.