I am using Office 2003 on Windows XP.

I have a custom program for certain users, but as an error check, the
program needs to determine if the activesheet contains a tabular list of
data. For ease of use and flexibility, I don't want the user to have to
define a list, table, or range.

Most users will know that they need a starting tabular list (which could
span from 1 to 100 columns and any number of rows), so most of the time it
would run correctly. But if someone new, or someone just forgot, it would be
nice if there were some sort of auto-detecting code that could determine this
and generate a custom error message.

Any ideas on how to do this programmatically in VBA?

Thanks much in advance.