Create a flow that is as strong as a parent-child bond. A child table is a column that acts as a table within the main worksheet. It can be used to create a list of items and values in a table. The interesting thing is how any worksheet can be changed into a child worksheet with the child column. An important point to consider is how any non-child worksheet can be turned into a child worksheet from the main dropdown column. The key column is one of the primary keys in the child table against which most values are entered. The parent column dropdown lets you save values from the parent worksheet to a child's for easy reference, thus the special bond. Following is an example of how the child table appears while entering data Child table