Two Header Rows in Datasheet View

Question

Is it possible to have two header rows? Example, one row is the title and the one below is the description.

OR

In the Column properties, can we add the Description as the 2nd row of the Datasheet View?

Answer 1

No.

This is not possible using SharePoint OOTB functionalities for Datasheet view.

However you can add description to your fields from field/column settings. These descriptions will be shown on SharePoint list forms.