The Repeating Rows column enables you to implement multi-row forms in SharePoint, no need for external proprietary tools such as InfoPath.
Example: Expense reports
We have used the Repeating Rows column to connect the "Expenses" list to the "Expense Details" list, so each expense item may include several expense details items.
Add your own expense report by adding a new item to the "Expenses" list below.
You might notice that: