let
    Source = Table.FromRecords({
        [CustomerID = 1, Name = "Bob", Sales = 100],
        [CustomerID = 2, Name = "Jim", Sales = 200],
        [ID = 3, Name = "Paul", Sales = 300]
    }),
    Result = Table.First(Source)
in
    Result

let
    EmptyTable = Table.FromRecords({}),
    Result = Table.First(EmptyTable, [CustomerID = 0, Name = "Default"])
in
    Result

let
    Source = Table.FromRecords({
        [Product = "Apple", Price = 50],
        [Product = "Banana", Price = 30]
    }),
    FirstRow = Table.First(Source),
    FirstProduct = FirstRow[Product]
in
    FirstProduct