Explode lines into multiple line objects where each line segment from the original line becomes a separate line object. This transform operator has no effect on areas or points.
When new lines are created their data attributes will be taken from the original line according to the transfer rules specified for the table's columns.
Example

Consider a drawing with one line, that has been selected.

In the drawing's table we can see there is only one object. The N to 1 transfer rule for the Name column has been set to Copy.

If we run the Explode transform, we convert each segment of the line into a separate line object. We can select a few segments to show they are now separate lines.

The drawing's table now shows clearly that there are multiple lines. The effect of the Copy transfer rule is to copy the value of the Name column into each of the new line objects created.
Note also that there is no longer an object with an ID of 16 because the original line object has been deleted. It has been replaced by the newly created lines, one for each of the former segments.