Again, if you don't tell us the location of the existing table, how can we give you code for this. We need to know the entire range of the table so that it can be appended to the table. Name of the Sheet where the table is also necessary. We unfortunately are not mind readers and cannot see your worksheet to understand exactly what you have. You need to tell us.
Also, how can you have an existing table in a new sheet. Do you mean an existing table in an existing sheet?