I have been using the Form in Excel for sometime. Today, I have a new
problem I have never seen before.

When I try to add a new record by using the form function (Data - Form), it
has an error message that "Cannot extend list or database". But the
speadsheet has only 430 records. I try to add a record at the bottom of the
list then use form to delet the record, it works, but when I add a new
record, it doesn't work.

Could any one please please help. Thank you very much.