For this function we have to activate allow push to server for our App. To do so, go to the App Admin page, select Manage data > Allow client changes in the left navigation and after the activation, click save on the top menu bar.

Create a row at the and of the list. The data has to be in the following format. Not filled fields will be filled with a null value.

As a response we get the complete object stored in the excel file.

{
  "data": {
    "2": "Mr",
    "3": "John",
    "4": "Doe",
    "5": "Mr John Doe"
  }
}