Merging Columns

I am trying to merge four excel columns into one but i need them seperated by
commas

See

http://www.mcgimpsey.com/excel/subs/mergedata.html

In article <94D033B4-C1B9-4D4E-A382-2CAC0D386129@microsoft.com>,
HELP, Trying to more proficient here <HELP, Trying to more proficient
here@discussions.microsoft.com> wrote:

> I am trying to merge four excel columns into one but i need them seperated by
> commas